Vulnerabilities > CVE-2013-1432 - Resource Management Errors vulnerability in XEN

047910
CVSS 7.4 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
xen
CWE-399
nessus

Summary

Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service (premature page free and hypervisor crash) or possibly gain privileges via unspecified vectors.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2014-0446-1.NASL
    descriptionThe SUSE Linux Enterprise Server 11 Service Pack 1 LTSS Xen hypervisor and toolset have been updated to fix various security issues and some bugs. The following security issues have been addressed : XSA-84: CVE-2014-1894: Xen 3.2 (and presumably earlier) exhibit both problems with the overflow issue being present for more than just the suboperations listed above. (bnc#860163) XSA-84: CVE-2014-1892 CVE-2014-1893: Xen 3.3 through 4.1, while not affected by the above overflow, have a different overflow issue on FLASK_{GET,SET}BOOL and expose unreasonably large memory allocation to arbitrary guests. (bnc#860163) XSA-84: CVE-2014-1891: The FLASK_{GET,SET}BOOL, FLASK_USER and FLASK_CONTEXT_TO_SID suboperations of the flask hypercall are vulnerable to an integer overflow on the input size. The hypercalls attempt to allocate a buffer which is 1 larger than this size and is therefore vulnerable to integer overflow and an attempt to allocate then access a zero byte buffer. (bnc#860163) XSA-82: CVE-2013-6885: The microcode on AMD 16h 00h through 0Fh processors does not properly handle the interaction between locked instructions and write-combined memory types, which allows local users to cause a denial of service (system hang) via a crafted application, aka the errata 793 issue. (bnc#853049) XSA-76: CVE-2013-4554: Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2. (bnc#849668) XSA-74: CVE-2013-4553: The XEN_DOMCTL_getmemlist hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always obtain the page_alloc_lock and mm_rwlock in the same order, which allows local guest administrators to cause a denial of service (host deadlock). (bnc#849667) XSA-73: CVE-2013-4494: Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors. (bnc#848657) XSA-67: CVE-2013-4368: The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register. (bnc#842511) XSA-66: CVE-2013-4361: The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction. (bnc#841766) XSA-63: CVE-2013-4355: Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) port or (2) memory mapped I/O write or (3) other unspecified operations related to addresses without associated memory. (bnc#840592) XSA-62: CVE-2013-1442: Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers. (bnc#839596) XSA-61: CVE-2013-4329: The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction. (bnc#839618) XSA-60: CVE-2013-2212: The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling chaches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range. (bnc#831120) XSA-58: CVE-2013-1918: Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to
    last seen2020-06-05
    modified2015-05-20
    plugin id83616
    published2015-05-20
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/83616
    titleSUSE SLES11 Security Update : Xen (SUSE-SU-2014:0446-1)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from SUSE update advisory SUSE-SU-2014:0446-1.
    # The text itself is copyright (C) SUSE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(83616);
      script_version("2.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");
    
      script_cve_id("CVE-2006-1056", "CVE-2007-0998", "CVE-2012-3497", "CVE-2012-4411", "CVE-2012-4535", "CVE-2012-4537", "CVE-2012-4538", "CVE-2012-4539", "CVE-2012-4544", "CVE-2012-5510", "CVE-2012-5511", "CVE-2012-5513", "CVE-2012-5514", "CVE-2012-5515", "CVE-2012-5634", "CVE-2012-6075", "CVE-2012-6333", "CVE-2013-0153", "CVE-2013-0154", "CVE-2013-1432", "CVE-2013-1442", "CVE-2013-1917", "CVE-2013-1918", "CVE-2013-1919", "CVE-2013-1920", "CVE-2013-1952", "CVE-2013-1964", "CVE-2013-2072", "CVE-2013-2076", "CVE-2013-2077", "CVE-2013-2194", "CVE-2013-2195", "CVE-2013-2196", "CVE-2013-2211", "CVE-2013-2212", "CVE-2013-4329", "CVE-2013-4355", "CVE-2013-4361", "CVE-2013-4368", "CVE-2013-4494", "CVE-2013-4553", "CVE-2013-4554", "CVE-2013-6885", "CVE-2014-1891", "CVE-2014-1892", "CVE-2014-1893", "CVE-2014-1894");
      script_bugtraq_id(17600, 22967, 55410, 55442, 56289, 56498, 56794, 56796, 56797, 56798, 56803, 57159, 57223, 57420, 57745, 58880, 59291, 59292, 59293, 59615, 59617, 59982, 60277, 60282, 60701, 60702, 60703, 60721, 60799, 61424, 62307, 62630, 62708, 62710, 62935, 63494, 63931, 63933, 63983, 65419);
    
      script_name(english:"SUSE SLES11 Security Update : Xen (SUSE-SU-2014:0446-1)");
      script_summary(english:"Checks rpm output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote SUSE host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The SUSE Linux Enterprise Server 11 Service Pack 1 LTSS Xen hypervisor
    and toolset have been updated to fix various security issues and some
    bugs.
    
    The following security issues have been addressed :
    
    XSA-84: CVE-2014-1894: Xen 3.2 (and presumably earlier) exhibit both
    problems with the overflow issue being present for more than just the
    suboperations listed above. (bnc#860163)
    
    XSA-84: CVE-2014-1892 CVE-2014-1893: Xen 3.3 through 4.1,
    while not affected by the above overflow, have a different
    overflow issue on FLASK_{GET,SET}BOOL and expose
    unreasonably large memory allocation to arbitrary guests.
    (bnc#860163)
    
    XSA-84: CVE-2014-1891: The FLASK_{GET,SET}BOOL, FLASK_USER
    and FLASK_CONTEXT_TO_SID suboperations of the flask
    hypercall are vulnerable to an integer overflow on the input
    size. The hypercalls attempt to allocate a buffer which is 1
    larger than this size and is therefore vulnerable to integer
    overflow and an attempt to allocate then access a zero byte
    buffer. (bnc#860163)
    
    XSA-82: CVE-2013-6885: The microcode on AMD 16h 00h through
    0Fh processors does not properly handle the interaction
    between locked instructions and write-combined memory types,
    which allows local users to cause a denial of service
    (system hang) via a crafted application, aka the errata 793
    issue. (bnc#853049)
    
    XSA-76: CVE-2013-4554: Xen 3.0.3 through 4.1.x (possibly
    4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1)
    does not properly prevent access to hypercalls, which allows
    local guest users to gain privileges via a crafted
    application running in ring 1 or 2. (bnc#849668)
    
    XSA-74: CVE-2013-4553: The XEN_DOMCTL_getmemlist hypercall
    in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always
    obtain the page_alloc_lock and mm_rwlock in the same order,
    which allows local guest administrators to cause a denial of
    service (host deadlock). (bnc#849667)
    
    XSA-73: CVE-2013-4494: Xen before 4.1.x, 4.2.x, and 4.3.x
    does not take the page_alloc_lock and grant_table.lock in
    the same order, which allows local guest administrators with
    access to multiple vcpus to cause a denial of service (host
    deadlock) via unspecified vectors. (bnc#848657)
    
    XSA-67: CVE-2013-4368: The outs instruction emulation in Xen
    3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS:
    segment override, uses an uninitialized variable as a
    segment base, which allows local 64-bit PV guests to obtain
    sensitive information (hypervisor stack content) via
    unspecified vectors related to stale data in a segment
    register. (bnc#842511)
    
    XSA-66: CVE-2013-4361: The fbld instruction emulation in Xen
    3.3.x through 4.3.x does not use the correct variable for
    the source effective address, which allows local HVM guests
    to obtain hypervisor stack information by reading the values
    used by the instruction. (bnc#841766)
    
    XSA-63: CVE-2013-4355: Xen 4.3.x and earlier does not
    properly handle certain errors, which allows local HVM
    guests to obtain hypervisor stack memory via a (1) port or
    (2) memory mapped I/O write or (3) other unspecified
    operations related to addresses without associated memory.
    (bnc#840592)
    
    XSA-62: CVE-2013-1442: Xen 4.0 through 4.3.x, when using AVX
    or LWP capable CPUs, does not properly clear previous data
    from registers when using an XSAVE or XRSTOR to extend the
    state components of a saved or restored vCPU after touching
    other restored extended registers, which allows local guest
    OSes to obtain sensitive information by reading the
    registers. (bnc#839596)
    
    XSA-61: CVE-2013-4329: The xenlight library (libxl) in Xen
    4.0.x through 4.2.x, when IOMMU is disabled, provides access
    to a busmastering-capable PCI passthrough device before the
    IOMMU setup is complete, which allows local HVM guest
    domains to gain privileges or cause a denial of service via
    a DMA instruction. (bnc#839618)
    
    XSA-60: CVE-2013-2212: The vmx_set_uc_mode function in Xen
    3.3 through 4.3, when disabling chaches, allows local HVM
    guests with access to memory mapped I/O regions to cause a
    denial of service (CPU consumption and possibly hypervisor
    or guest kernel panic) via a crafted GFN range. (bnc#831120)
    
    XSA-58: CVE-2013-1918: Certain page table manipulation
    operations in Xen 4.1.x, 4.2.x, and earlier are not
    preemptible, which allows local PV kernels to cause a denial
    of service via vectors related to 'deep page table
    traversal.' (bnc#826882)
    
    XSA-58: CVE-2013-1432: Xen 4.1.x and 4.2.x, when the XSA-45
    patch is in place, does not properly maintain references on
    pages stored for deferred cleanup, which allows local PV
    guest kernels to cause a denial of service (premature page
    free and hypervisor crash) or possible gain privileges via
    unspecified vectors. (bnc#826882)
    
    XSA-57: CVE-2013-2211: The libxenlight (libxl) toolstack
    library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions
    for xenstore keys for paravirtualised and emulated serial
    console devices, which allows local guest administrators to
    modify the xenstore value via unspecified vectors.
    (bnc#823608)
    
    XSA-56: CVE-2013-2072: Buffer overflow in the Python
    bindings for the xc_vcpu_setaffinity call in Xen 4.0.x,
    4.1.x, and 4.2.x allows local administrators with
    permissions to configure VCPU affinity to cause a denial of
    service (memory corruption and xend toolstack crash) and
    possibly gain privileges via a crafted cpumap. (bnc#819416)
    
    XSA-55: CVE-2013-2196: Multiple unspecified vulnerabilities
    in the Elf parser (libelf) in Xen 4.2.x and earlier allow
    local guest administrators with certain permissions to have
    an unspecified impact via a crafted kernel, related to
    'other problems' that are not CVE-2013-2194 or
    CVE-2013-2195. (bnc#823011)
    
    XSA-55: CVE-2013-2195: The Elf parser (libelf) in Xen 4.2.x
    and earlier allow local guest administrators with certain
    permissions to have an unspecified impact via a crafted
    kernel, related to 'pointer dereferences' involving
    unexpected calculations. (bnc#823011)
    
    XSA-55: CVE-2013-2194: Multiple integer overflows in the Elf
    parser (libelf) in Xen 4.2.x and earlier allow local guest
    administrators with certain permissions to have an
    unspecified impact via a crafted kernel. (bnc#823011)
    
    XSA-53: CVE-2013-2077: Xen 4.0.x, 4.1.x, and 4.2.x does not
    properly restrict the contents of a XRSTOR, which allows
    local PV guest users to cause a denial of service (unhandled
    exception and hypervisor crash) via unspecified vectors.
    (bnc#820919)
    
    XSA-52: CVE-2013-2076: Xen 4.0.x, 4.1.x, and 4.2.x, when
    running on AMD64 processors, only save/restore the FOP, FIP,
    and FDP x87 registers in FXSAVE/FXRSTOR when an exception is
    pending, which allows one domain to determine portions of
    the state of floating point instructions of other domains,
    which can be leveraged to obtain sensitive information such
    as cryptographic keys, a similar vulnerability to
    CVE-2006-1056. NOTE: this is the documented behavior of
    AMD64 processors, but it is inconsistent with Intel
    processors in a security-relevant fashion that was not
    addressed by the kernels. (bnc#820917)
    
    XSA-50: CVE-2013-1964: Xen 4.0.x and 4.1.x incorrectly
    releases a grant reference when releasing a non-v1,
    non-transitive grant, which allows local guest
    administrators to cause a denial of service (host crash),
    obtain sensitive information, or possible have other impacts
    via unspecified vectors. (bnc#816156)
    
    XSA-49: CVE-2013-1952: Xen 4.x, when using Intel VT-d for a
    bus mastering capable PCI device, does not properly check
    the source when accessing a bridge device's interrupt
    remapping table entries for MSI interrupts, which allows
    local guest domains to cause a denial of service (interrupt
    injection) via unspecified vectors. (bnc#816163)
    
    XSA-47: CVE-2013-1920: Xen 4.2.x, 4.1.x, and earlier, when
    the hypervisor is running 'under memory pressure' and the
    Xen Security Module (XSM) is enabled, uses the wrong
    ordering of operations when extending the per-domain event
    channel tracking table, which causes a use-after-free and
    allows local guest kernels to inject arbitrary events and
    gain privileges via unspecified vectors. (bnc#813677)
    
    XSA-46: CVE-2013-1919: Xen 4.2.x and 4.1.x does not properly
    restrict access to IRQs, which allows local stub domain
    clients to gain access to IRQs and cause a denial of service
    via vectors related to 'passed-through IRQs or PCI devices.'
    (bnc#813675)
    
    XSA-45: CVE-2013-1918: Certain page table manipulation
    operations in Xen 4.1.x, 4.2.x, and earlier are not
    preemptible, which allows local PV kernels to cause a denial
    of service via vectors related to 'deep page table
    traversal.' (bnc#816159)
    
    XSA-44: CVE-2013-1917: Xen 3.1 through 4.x, when running
    64-bit hosts on Intel CPUs, does not clear the NT flag when
    using an IRET after a SYSENTER instruction, which allows PV
    guest users to cause a denial of service (hypervisor crash)
    by triggering a #GP fault, which is not properly handled by
    another IRET instruction. (bnc#813673)
    
    XSA-41: CVE-2012-6075: Buffer overflow in the e1000_receive
    function in the e1000 device driver (hw/e1000.c) in QEMU
    1.3.0-rc2 and other versions, when the SBP and LPE flags are
    disabled, allows remote attackers to cause a denial of
    service (guest OS crash) and possibly execute arbitrary
    guest code via a large packet. (bnc#797523)
    
    XSA-37: CVE-2013-0154: The get_page_type function in
    xen/arch/x86/mm.c in Xen 4.2, when debugging is enabled,
    allows local PV or HVM guest administrators to cause a
    denial of service (assertion failure and hypervisor crash)
    via unspecified vectors related to a hypercall. (bnc#797031)
    
    XSA-36: CVE-2013-0153: The AMD IOMMU support in Xen 4.2.x,
    4.1.x, 3.3, and other versions, when using AMD-Vi for PCI
    passthrough, uses the same interrupt remapping table for the
    host and all guests, which allows guests to cause a denial
    of service by injecting an interrupt into other guests.
    (bnc#800275)
    
    XSA-33: CVE-2012-5634: Xen 4.2.x, 4.1.x, and 4.0, when using
    Intel VT-d for PCI passthrough, does not properly configure
    VT-d when supporting a device that is behind a legacy PCI
    Bridge, which allows local guests to cause a denial of
    service to other guests by injecting an interrupt.
    (bnc#794316)
    
    XSA-31: CVE-2012-5515: The (1) XENMEM_decrease_reservation,
    (2) XENMEM_populate_physmap, and (3) XENMEM_exchange
    hypercalls in Xen 4.2 and earlier allow local guest
    administrators to cause a denial of service (long loop and
    hang) via a crafted extent_order value. (bnc#789950)
    
    XSA-30: CVE-2012-5514: The
    guest_physmap_mark_populate_on_demand function in Xen 4.2
    and earlier does not properly unlock the subject GFNs when
    checking if they are in use, which allows local guest HVM
    administrators to cause a denial of service (hang) via
    unspecified vectors. (bnc#789948)
    
    XSA-29: CVE-2012-5513: The XENMEM_exchange handler in Xen
    4.2 and earlier does not properly check the memory address,
    which allows local PV guest OS administrators to cause a
    denial of service (crash) or possibly gain privileges via
    unspecified vectors that overwrite memory in the hypervisor
    reserved range. (bnc#789951)
    
    XSA-27: CVE-2012-6333: Multiple HVM control operations in
    Xen 3.4 through 4.2 allow local HVM guest OS administrators
    to cause a denial of service (physical CPU consumption) via
    a large input. (bnc#789944)
    
    XSA-27: CVE-2012-5511: Stack-based buffer overflow in the
    dirty video RAM tracking functionality in Xen 3.4 through
    4.1 allows local HVM guest OS administrators to cause a
    denial of service (crash) via a large bitmap image.
    (bnc#789944)
    
    XSA-26: CVE-2012-5510: Xen 4.x, when downgrading the grant
    table version, does not properly remove the status page from
    the tracking list when freeing the page, which allows local
    guest OS administrators to cause a denial of service
    (hypervisor crash) via unspecified vectors. (bnc#789945)
    
    XSA-25: CVE-2012-4544: The PV domain builder in Xen 4.2 and
    earlier does not validate the size of the kernel or ramdisk
    (1) before or (2) after decompression, which allows local
    guest administrators to cause a denial of service (domain 0
    memory consumption) via a crafted (a) kernel or (b) ramdisk.
    (bnc#787163)
    
    XSA-24: CVE-2012-4539: Xen 4.0 through 4.2, when running
    32-bit x86 PV guests on 64-bit hypervisors, allows local
    guest OS administrators to cause a denial of service
    (infinite loop and hang or crash) via invalid arguments to
    GNTTABOP_get_status_frames, aka 'Grant table hypercall
    infinite loop DoS vulnerability.' (bnc#786520)
    
    XSA-23: CVE-2012-4538: The HVMOP_pagetable_dying hypercall
    in Xen 4.0, 4.1, and 4.2 does not properly check the
    pagetable state when running on shadow pagetables, which
    allows a local HVM guest OS to cause a denial of service
    (hypervisor crash) via unspecified vectors. (bnc#786519)
    
    XSA-22: CVE-2012-4537: Xen 3.4 through 4.2, and possibly
    earlier versions, does not properly synchronize the p2m and
    m2p tables when the set_p2m_entry function fails, which
    allows local HVM guest OS administrators to cause a denial
    of service (memory consumption and assertion failure), aka
    'Memory mapping failure DoS vulnerability.' (bnc#786517)
    
    XSA-20: CVE-2012-4535: Xen 3.4 through 4.2, and possibly
    earlier versions, allows local guest OS administrators to
    cause a denial of service (Xen infinite loop and physical
    CPU consumption) by setting a VCPU with an 'inappropriate
    deadline.' (bnc#786516)
    
    XSA-19: CVE-2012-4411: The graphical console in Xen 4.0, 4.1
    and 4.2 allows local OS guest administrators to obtain
    sensitive host resource information via the qemu monitor.
    NOTE: this might be a duplicate of CVE-2007-0998.
    (bnc#779212)
    
    XSA-15: CVE-2012-3497: (1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2)
    TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS
    and (4) TMEMC_SAVE_END in the Transcendent Memory (TMEM) in
    Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a
    denial of service (NULL pointer dereference or memory
    corruption and host crash) or possibly have other
    unspecified impacts via a NULL client id. (bnc#777890)
    
    Also the following non-security bugs have been fixed :
    
      - xen hot plug attach/detach fails modified
        blktap-pv-cdrom.patch. (bnc#805094)
    
      - guest 'disappears' after live migration Updated
        block-dmmd script. (bnc#777628)
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the SUSE security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      # http://download.suse.com/patch/finder/?keywords=d46197780129fa94fee1eb1708143171
      script_set_attribute(
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        value:"http://support.novell.com/security/cve/CVE-2007-0998.html"
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      script_set_attribute(
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      script_set_attribute(
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        value:"http://support.novell.com/security/cve/CVE-2012-4538.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-4539.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-4544.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5510.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5511.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5513.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5514.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5515.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-5634.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-6075.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2012-6333.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-0153.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-0154.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1432.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1442.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1917.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1918.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1919.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1920.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1952.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-1964.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2072.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2076.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2077.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2194.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2195.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2196.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2211.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-2212.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4329.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4355.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4361.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4368.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4494.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4553.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-4554.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2013-6885.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2014-1891.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2014-1892.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2014-1893.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://support.novell.com/security/cve/CVE-2014-1894.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/777628"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/777890"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/779212"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/786516"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/786517"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/786519"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/786520"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/787163"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/789944"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/789945"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/789948"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/789950"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/789951"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/794316"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/797031"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/797523"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/800275"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/805094"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/813673"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/813675"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/813677"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/816156"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/816159"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/816163"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/819416"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/820917"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/820919"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/823011"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/823608"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/826882"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/831120"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/839596"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/839618"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/840592"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/841766"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/842511"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/848657"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/849667"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/849668"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/853049"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/860163"
      );
      # https://www.suse.com/support/update/announcement/2014/suse-su-20140446-1.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?e4176238"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product :
    
    SUSE Linux Enterprise Server 11 SP1 LTSS :
    
    zypper in -t patch slessp1-xen-201402-8963
    
    To bring your system up-to-date, use 'zypper patch'."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
      script_cwe_id(264);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-pdf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-pae");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-trace");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2014/03/25");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/05/20");
      script_set_attribute(attribute:"vuln_publication_date", value:"2006/04/19");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.");
      script_family(english:"SuSE Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/SuSE/release");
    if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
    os_ver = eregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver);
    
    if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
    if (cpu >!< "i386|i486|i586|i686|x86_64") audit(AUDIT_ARCH_NOT, "i386 / i486 / i586 / i686 / x86_64", cpu);
    
    
    sp = get_kb_item("Host/SuSE/patchlevel");
    if (isnull(sp)) sp = "0";
    if (os_ver == "SLES11" && (! ereg(pattern:"^1$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP1", os_ver + " SP" + sp);
    
    
    flag = 0;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-doc-html-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-doc-pdf-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-kmp-trace-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-libs-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-tools-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"x86_64", reference:"xen-kmp-pae-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-doc-html-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-doc-pdf-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-kmp-default-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-kmp-trace-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-libs-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-tools-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-tools-domU-4.0.3_21548_16-0.5.1")) flag++;
    if (rpm_check(release:"SLES11", sp:"1", cpu:"i586", reference:"xen-kmp-pae-4.0.3_21548_16_2.6.32.59_0.9-0.5.1")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Xen");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-11837.NASL
    descriptionXSA-45/CVE-2013-1918 breaks page reference counting let pygrub handle set default=
    last seen2020-03-17
    modified2013-07-12
    plugin id67326
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/67326
    titleFedora 19 : xen-4.2.2-10.fc19 (2013-11837)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory 2013-11837.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(67326);
      script_version("1.9");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2013-1432", "CVE-2013-1918", "CVE-2013-2211");
      script_bugtraq_id(59615, 60721, 60799);
      script_xref(name:"FEDORA", value:"2013-11837");
    
      script_name(english:"Fedora 19 : xen-4.2.2-10.fc19 (2013-11837)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "XSA-45/CVE-2013-1918 breaks page reference counting let pygrub handle
    set default='${next_entry}' line in F19 libxl: Set vfb and vkb devid
    if not done so by the caller add upstream patch for PCI passthrough
    problems after XSA-46 xenstore permissions not set correctly by libxl
    [XSA-57]
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Fedora security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=971503"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=974250"
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2013-July/110604.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?99313545"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:19");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2013/06/27");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2013-2020 Tenable Network Security, Inc.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^19([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 19.x", "Fedora " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
    
    flag = 0;
    if (rpm_check(release:"FC19", reference:"xen-4.2.2-10.fc19")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen");
    }
    
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2013-0059.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - x86: fix page refcount handling in page table pin error path In the original patch 7 of the series addressing XSA-45 I mistakenly took the addition of the call to get_page_light in alloc_page_type to cover two decrements that would happen: One for the PGT_partial bit that is getting set along with the call, and the other for the page reference the caller hold (and would be dropping on its error path). But of course the additional page reference is tied to the PGT_partial bit, and hence any caller of a function that may leave ->arch.old_guest_table non-NULL for error cleanup purposes has to make sure a respective page reference gets retained. Similar issues were then also spotted elsewhere: In effect all callers of get_page_type_preemptible need to deal with errors in similar ways. To make sure error handling can work this way without leaking page references, a respective assertion gets added to that function. This is CVE-2013-1432 / XSA-58. - libxl: Restrict permissions on PV console device xenstore nodes Matthew Daley has observed that the PV console protocol places sensitive host state into a guest writeable xenstore locations, this includes : - The pty used to communicate between the console backend daemon and its client, allowing the guest administrator to read and write arbitrary host files. - The output file, allowing the guest administrator to write arbitrary host files or to target arbitrary qemu chardevs which include sockets, udp, ptr, pipes etc (see -chardev in qemu(1) for a more complete list). - The maximum buffer size, allowing the guest administrator to consume more resources than the host administrator has configured. - The backend to use (qemu vs xenconsoled), potentially allowing the guest administrator to confuse host software. So we arrange to make the sensitive keys in the xenstore frontend directory read only for the guest. This is safe since the xenstore permissions model, unlike POSIX directory permissions, does not allow the guest to remove and recreate a node if it has write access to the containing directory. There are a few associated wrinkles : - The primary PV console is
    last seen2020-06-01
    modified2020-06-02
    plugin id79514
    published2014-11-26
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79514
    titleOracleVM 3.2 : xen (OVMSA-2013-0059)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from OracleVM
    # Security Advisory OVMSA-2013-0059.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(79514);
      script_version("1.3");
      script_cvs_date("Date: 2019/09/27 13:00:34");
    
      script_cve_id("CVE-2013-1432");
      script_bugtraq_id(60799);
    
      script_name(english:"OracleVM 3.2 : xen (OVMSA-2013-0059)");
      script_summary(english:"Checks the RPM output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote OracleVM host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote OracleVM system is missing necessary patches to address
    critical security updates :
    
      - x86: fix page refcount handling in page table pin error
        path In the original patch 7 of the series addressing
        XSA-45 I mistakenly took the addition of the call to
        get_page_light in alloc_page_type to cover two
        decrements that would happen: One for the PGT_partial
        bit that is getting set along with the call, and the
        other for the page reference the caller hold (and would
        be dropping on its error path). But of course the
        additional page reference is tied to the PGT_partial
        bit, and hence any caller of a function that may leave
        ->arch.old_guest_table non-NULL for error cleanup
        purposes has to make sure a respective page reference
        gets retained. Similar issues were then also spotted
        elsewhere: In effect all callers of
        get_page_type_preemptible need to deal with errors in
        similar ways. To make sure error handling can work this
        way without leaking page references, a respective
        assertion gets added to that function. This is
        CVE-2013-1432 / XSA-58.
    
      - libxl: Restrict permissions on PV console device
        xenstore nodes Matthew Daley has observed that the PV
        console protocol places sensitive host state into a
        guest writeable xenstore locations, this includes :
    
      - The pty used to communicate between the console backend
        daemon and its client, allowing the guest administrator
        to read and write arbitrary host files.
    
      - The output file, allowing the guest administrator to
        write arbitrary host files or to target arbitrary qemu
        chardevs which include sockets, udp, ptr, pipes etc (see
        -chardev in qemu(1) for a more complete list).
    
      - The maximum buffer size, allowing the guest
        administrator to consume more resources than the host
        administrator has configured.
    
      - The backend to use (qemu vs xenconsoled), potentially
        allowing the guest administrator to confuse host
        software. So we arrange to make the sensitive keys in
        the xenstore frontend directory read only for the guest.
        This is safe since the xenstore permissions model,
        unlike POSIX directory permissions, does not allow the
        guest to remove and recreate a node if it has write
        access to the containing directory. There are a few
        associated wrinkles :
    
      - The primary PV console is 'special'. It's xenstore node
        is not under the usual /devices/ subtree and it does not
        use the customary xenstore state machine protocol.
        Unfortunately its directory is used for other things,
        including the vnc-port node, which we do not want the
        guest to be able to write to. Rather than trying to
        track down all the possible secondary uses of this
        directory just make it r/o to the guest. All newly
        created subdirectories inherit these permissions and so
        are now safe by default.
    
      - The other serial consoles do use the customary xenstore
        state machine and therefore need write access to at
        least the 'protocol' and 'state' nodes, however they may
        also want to use arbitrary 'feature-foo' nodes (although
        I'm not aware of any) and therefore we cannot simply
        lock down the entire frontend directory. Instead we add
        support to libxl__device_generic_add for frontend keys
        which are explicitly read only and use that to lock down
        the sensitive keys.
    
      - Minios' console frontend wants to write the 'type' node,
        which it has no business doing since this is a
        host/toolstack level decision. This fails now that the
        node has become read only to the PV guest. Since the
        toolstack already writes this node just remove the
        attempt to set it. This is CVE-XXXX-XXX / XSA-57
    
        Conflicts (4.2 backport): tools/libxl/libxl.c (no vtpm,
        free front_ro on error in libxl__device_console_add)
        Conflicts (4.1 backport):
        extras/mini-os/console/xenbus.c tools/libxl/libxl.c
        tools/libxl/libxl_device.c tools/libxl/libxl_internal.h
        tools/libxl/libxl_pci.c tools/libxl/libxl_xshelp.c
    
      - minios code was in xencons_ring.c
    
      - many places need &gc not just gc
    
      - libxl__xs_writev path is not const
    
      - varios minor context fixups"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/oraclevm-errata/2013-June/000169.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected xen / xen-devel / xen-tools packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.2");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/28");
      script_set_attribute(attribute:"patch_publication_date", value:"2013/06/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/26");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"OracleVM Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/OracleVM/release");
    if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
    if (! preg(pattern:"^OVS" + "3\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.2", "OracleVM " + release);
    if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    flag = 0;
    if (rpm_check(release:"OVS3.2", reference:"xen-4.1.3-25.el5.22.28")) flag++;
    if (rpm_check(release:"OVS3.2", reference:"xen-devel-4.1.3-25.el5.22.28")) flag++;
    if (rpm_check(release:"OVS3.2", reference:"xen-tools-4.1.3-25.el5.22.28")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-tools");
    }
    
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2015-0068.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2015-0068 for details.
    last seen2020-06-01
    modified2020-06-02
    plugin id84140
    published2015-06-12
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/84140
    titleOracleVM 3.2 : xen (OVMSA-2015-0068) (POODLE) (Venom)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from OracleVM
    # Security Advisory OVMSA-2015-0068.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(84140);
      script_version("2.18");
      script_cvs_date("Date: 2019/11/12");
    
      script_cve_id("CVE-2006-1056", "CVE-2007-0998", "CVE-2012-0029", "CVE-2012-2625", "CVE-2012-2934", "CVE-2012-3433", "CVE-2012-3494", "CVE-2012-3495", "CVE-2012-3496", "CVE-2012-3497", "CVE-2012-3498", "CVE-2012-3515", "CVE-2012-4535", "CVE-2012-4536", "CVE-2012-4537", "CVE-2012-4538", "CVE-2012-4544", "CVE-2012-5510", "CVE-2012-5511", "CVE-2012-5512", "CVE-2012-5513", "CVE-2012-5514", "CVE-2012-5515", "CVE-2012-5634", "CVE-2013-0153", "CVE-2013-0215", "CVE-2013-1432", "CVE-2013-1442", "CVE-2013-1917", "CVE-2013-1918", "CVE-2013-1919", "CVE-2013-1920", "CVE-2013-1952", "CVE-2013-1964", "CVE-2013-2072", "CVE-2013-2076", "CVE-2013-2077", "CVE-2013-2078", "CVE-2013-2194", "CVE-2013-2195", "CVE-2013-2196", "CVE-2013-2211", "CVE-2013-4329", "CVE-2013-4355", "CVE-2013-4361", "CVE-2013-4368", "CVE-2013-4494", "CVE-2013-4553", "CVE-2013-4554", "CVE-2013-6400", "CVE-2013-6885", "CVE-2014-1892", "CVE-2014-1893", "CVE-2014-1950", "CVE-2014-3566", "CVE-2014-5146", "CVE-2014-7155", "CVE-2014-7156", "CVE-2014-7188", "CVE-2015-2044", "CVE-2015-2045", "CVE-2015-2151", "CVE-2015-2752", "CVE-2015-2756", "CVE-2015-3209", "CVE-2015-3456", "CVE-2015-4164");
      script_bugtraq_id(17600, 22967, 51642, 53650, 53961, 54942, 55400, 55406, 55410, 55412, 55413, 55414, 56289, 56498, 56794, 56796, 56797, 56798, 56799, 56803, 57223, 57742, 57745, 58880, 59291, 59292, 59293, 59615, 59617, 59982, 60277, 60278, 60282, 60701, 60702, 60703, 60721, 60799, 62307, 62630, 62708, 62710, 62935, 63494, 63931, 63933, 63983, 64195, 65419, 65529, 69198, 70057, 70062, 70198, 70574, 72577, 72954, 72955, 73015, 73448, 74640, 75123, 75149);
    
      script_name(english:"OracleVM 3.2 : xen (OVMSA-2015-0068) (POODLE) (Venom)");
      script_summary(english:"Checks the RPM output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote OracleVM host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote OracleVM system is missing necessary patches to address
    critical security updates : please see Oracle VM Security Advisory
    OVMSA-2015-0068 for details."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/oraclevm-errata/2015-June/000317.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected xen / xen-devel / xen-tools packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
      script_cwe_id(264);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.2");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2006/04/20");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/06/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/12");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"OracleVM Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/OracleVM/release");
    if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
    if (! preg(pattern:"^OVS" + "3\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.2", "OracleVM " + release);
    if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    flag = 0;
    if (rpm_check(release:"OVS3.2", reference:"xen-4.1.3-25.el5.127.52")) flag++;
    if (rpm_check(release:"OVS3.2", reference:"xen-devel-4.1.3-25.el5.127.52")) flag++;
    if (rpm_check(release:"OVS3.2", reference:"xen-tools-4.1.3-25.el5.127.52")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-tools");
    }
    
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201309-24.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201309-24 (Xen: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details. Impact : Guest domains could possibly gain privileges, execute arbitrary code, or cause a Denial of Service on the host domain (Dom0). Additionally, guest domains could gain information about other virtual machines running on the same host or read arbitrary files on the host. Workaround : The CVEs listed below do not currently have fixes, but only apply to Xen setups which have &ldquo;tmem&rdquo; specified on the hypervisor command line. TMEM is not currently supported for use in production systems, and administrators using tmem should disable it. Relevant CVEs: * CVE-2012-2497 * CVE-2012-6030 * CVE-2012-6031 * CVE-2012-6032 * CVE-2012-6033 * CVE-2012-6034 * CVE-2012-6035 * CVE-2012-6036
    last seen2020-06-01
    modified2020-06-02
    plugin id70184
    published2013-09-28
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/70184
    titleGLSA-201309-24 : Xen: Multiple vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201309-24.
    #
    # The advisory text is Copyright (C) 2001-2019 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(70184);
      script_version("1.15");
      script_cvs_date("Date: 2019/08/12 17:35:38");
    
      script_cve_id("CVE-2011-2901", "CVE-2011-3262", "CVE-2012-0217", "CVE-2012-0218", "CVE-2012-2934", "CVE-2012-3432", "CVE-2012-3433", "CVE-2012-3494", "CVE-2012-3495", "CVE-2012-3496", "CVE-2012-3497", "CVE-2012-3498", "CVE-2012-3515", "CVE-2012-4411", "CVE-2012-4535", "CVE-2012-4536", "CVE-2012-4537", "CVE-2012-4538", "CVE-2012-4539", "CVE-2012-5510", "CVE-2012-5511", "CVE-2012-5512", "CVE-2012-5513", "CVE-2012-5514", "CVE-2012-5515", "CVE-2012-5525", "CVE-2012-5634", "CVE-2012-6030", "CVE-2012-6031", "CVE-2012-6032", "CVE-2012-6033", "CVE-2012-6034", "CVE-2012-6035", "CVE-2012-6036", "CVE-2012-6075", "CVE-2012-6333", "CVE-2013-0151", "CVE-2013-0152", "CVE-2013-0153", "CVE-2013-0154", "CVE-2013-0215", "CVE-2013-1432", "CVE-2013-1917", "CVE-2013-1918", "CVE-2013-1919", "CVE-2013-1920", "CVE-2013-1922", "CVE-2013-1952", "CVE-2013-1964", "CVE-2013-2076", "CVE-2013-2077", "CVE-2013-2078", "CVE-2013-2194", "CVE-2013-2195", "CVE-2013-2196", "CVE-2013-2211");
      script_bugtraq_id(49370, 53856, 53955, 53961, 54691, 54942, 55400, 55406, 55410, 55412, 55413, 55414, 55442, 56498, 56794, 56796, 56797, 56798, 56799, 56803, 56805, 57159, 57223, 57420, 57494, 57495, 57742, 57745, 58880, 59070, 59291, 59292, 59293, 59615, 59617, 60277, 60278, 60282, 60701, 60702, 60703, 60721, 60799);
      script_xref(name:"GLSA", value:"201309-24");
    
      script_name(english:"GLSA-201309-24 : Xen: Multiple vulnerabilities");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-201309-24
    (Xen: Multiple vulnerabilities)
    
        Multiple vulnerabilities have been discovered in Xen. Please review the
          CVE identifiers referenced below for details.
      
    Impact :
    
        Guest domains could possibly gain privileges, execute arbitrary code, or
          cause a Denial of Service on the host domain (Dom0). Additionally, guest
          domains could gain information about other virtual machines running on
          the same host or read arbitrary files on the host.
      
    Workaround :
    
        The CVEs listed below do not currently have fixes, but only apply to Xen
          setups which have &ldquo;tmem&rdquo; specified on the hypervisor command line.
          TMEM is not currently supported for use in production systems, and
          administrators using tmem should disable it.
          Relevant CVEs:
          * CVE-2012-2497
          * CVE-2012-6030
          * CVE-2012-6031
          * CVE-2012-6032
          * CVE-2012-6033
          * CVE-2012-6034
          * CVE-2012-6035
          * CVE-2012-6036"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201309-24"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Xen users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=app-emulation/xen-4.2.2-r1'
        All Xen-tools users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose
          '>=app-emulation/xen-tools-4.2.2-r3'
        All Xen-pvgrub users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose
          '>=app-emulation/xen-pvgrub-4.2.2-r1'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'FreeBSD Intel SYSRET Privilege Escalation');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
      script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
      script_set_attribute(attribute:"canvas_package", value:'CANVAS');
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen-pvgrub");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen-tools");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/19");
      script_set_attribute(attribute:"patch_publication_date", value:"2013/09/27");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/28");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"app-emulation/xen-pvgrub", unaffected:make_list("ge 4.2.2-r1"), vulnerable:make_list("lt 4.2.2-r1"))) flag++;
    if (qpkg_check(package:"app-emulation/xen", unaffected:make_list("ge 4.2.2-r1"), vulnerable:make_list("lt 4.2.2-r1"))) flag++;
    if (qpkg_check(package:"app-emulation/xen-tools", unaffected:make_list("ge 4.2.2-r3"), vulnerable:make_list("lt 4.2.2-r3"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Xen");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2013-677.NASL
    descriptionXEN was updated to 4.2.2, fixing lots of bugs and several security issues. Various upstream patches were also merged into this version by our developers. Detailed buglist : - bnc#824676 - Failed to setup devices for vm instance when start multiple vms simultaneously - bnc#817799 - sles9sp4 guest fails to start after upgrading to sles11 sp3 - bnc#826882 - xen: CVE-2013-1432: XSA-58: Page reference counting error due to XSA-45/CVE-2013-1918 fixes - Add upstream patch to fix devid assignment in libxl 27184-libxl-devid-fix.patch - bnc#823608 - xen: XSA-57: libxl allows guest write access to sensitive console related xenstore keys 27178-libxl-Restrict-permissions-on-PV-console-device-xe nstore-nodes.patch - bnc#823011 - xen: XSA-55: Multiple vulnerabilities in libelf PV kernel handling - bnc#808269 - Fully Virtualized Windows VM install is failed on Ivy Bridge platforms with Xen kernel - bnc#801663 - performance of mirror lvm unsuitable for production block-dmmd - bnc#817904 - [SLES11SP3 BCS Bug] Crashkernel fails to boot after panic on XEN kernel SP3 Beta 4 and RC1 - Upstream AMD Erratum patch from Jan - bnc#813675 - - xen: CVE-2013-1919: XSA-46: Several access permission issues with IRQs for unprivileged guests - bnc#820917 - CVE-2013-2076: xen: Information leak on XSAVE/XRSTOR capable AMD CPUs (XSA-52) - bnc#820919 - CVE-2013-2077: xen: Hypervisor crash due to missing exception recovery on XRSTOR (XSA-53) - bnc#820920 - CVE-2013-2078: xen: Hypervisor crash due to missing exception recovery on XSETBV (XSA-54) - bnc#808085 - aacraid driver panics mapping INT A when booting kernel-xen - bnc#817210 - openSUSE 12.3 Domain 0 doesn
    last seen2020-06-05
    modified2014-06-13
    plugin id75130
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/75130
    titleopenSUSE Security Update : xen (openSUSE-SU-2013:1404-1)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from openSUSE Security Update openSUSE-2013-677.
    #
    # The text description of this plugin is (C) SUSE LLC.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(75130);
      script_version("1.6");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");
    
      script_cve_id("CVE-2012-6075", "CVE-2013-0151", "CVE-2013-1432", "CVE-2013-1917", "CVE-2013-1918", "CVE-2013-1919", "CVE-2013-1922", "CVE-2013-1952", "CVE-2013-2007", "CVE-2013-2072", "CVE-2013-2076", "CVE-2013-2077", "CVE-2013-2078");
      script_bugtraq_id(57420, 57495, 59070, 59291, 59292, 59615, 59617, 59675, 59982, 60277, 60278, 60282, 60799);
    
      script_name(english:"openSUSE Security Update : xen (openSUSE-SU-2013:1404-1)");
      script_summary(english:"Check for the openSUSE-2013-677 patch");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote openSUSE host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "XEN was updated to 4.2.2, fixing lots of bugs and several security
    issues.
    
    Various upstream patches were also merged into this version by our
    developers.
    
    Detailed buglist :
    
      - bnc#824676 - Failed to setup devices for vm instance
        when start multiple vms simultaneously
    
      - bnc#817799 - sles9sp4 guest fails to start after
        upgrading to sles11 sp3
    
      - bnc#826882 - xen: CVE-2013-1432: XSA-58: Page reference
        counting error due to XSA-45/CVE-2013-1918 fixes
    
      - Add upstream patch to fix devid assignment in libxl
        27184-libxl-devid-fix.patch
    
      - bnc#823608 - xen: XSA-57: libxl allows guest write
        access to sensitive console related xenstore keys
        27178-libxl-Restrict-permissions-on-PV-console-device-xe
        nstore-nodes.patch
    
      - bnc#823011 - xen: XSA-55: Multiple vulnerabilities in
        libelf PV kernel handling
    
      - bnc#808269 - Fully Virtualized Windows VM install is
        failed on Ivy Bridge platforms with Xen kernel
    
      - bnc#801663 - performance of mirror lvm unsuitable for
        production block-dmmd
    
      - bnc#817904 - [SLES11SP3 BCS Bug] Crashkernel fails to
        boot after panic on XEN kernel SP3 Beta 4 and RC1
    
      - Upstream AMD Erratum patch from Jan
    
      - bnc#813675 - - xen: CVE-2013-1919: XSA-46: Several
        access permission issues with IRQs for unprivileged
        guests
    
      - bnc#820917 - CVE-2013-2076: xen: Information leak on
        XSAVE/XRSTOR capable AMD CPUs (XSA-52)
    
      - bnc#820919 - CVE-2013-2077: xen: Hypervisor crash due to
        missing exception recovery on XRSTOR (XSA-53)
    
      - bnc#820920 - CVE-2013-2078: xen: Hypervisor crash due to
        missing exception recovery on XSETBV (XSA-54)
    
      - bnc#808085 - aacraid driver panics mapping INT A when
        booting kernel-xen
    
      - bnc#817210 - openSUSE 12.3 Domain 0 doesn't boot with
        i915 graphics controller under Xen with VT-d enabled
    
      - bnc#819416 - xen: CVE-2013-2072: XSA-56: Buffer overflow
        in xencontrol Python bindings affecting xend
    
      - bnc#818183 - xen: CVE-2013-2007: XSA-51: qga set umask
        0077 when daemonizing
    
      - add lndir to BuildRequires
    
      - remove
        xen.migrate.tools_notify_restore_to_hangup_during_migrat
        ion_--abort_if_busy.patch It changed migration protocol
        and upstream wants a different solution
    
      - bnc#802221 - fix xenpaging readd
        xenpaging.qemu.flush-cache.patch
    
      - bnc#808269 - Fully Virtualized Windows VM install is
        failed on Ivy Bridge platforms with Xen kernel
    
      - Additional fix for bnc#816159
        CVE-2013-1918-xsa45-followup.patch
    
      - bnc#817068 - Xen guest with >1 sr-iov vf won't start
    
      - Update to Xen 4.2.2 c/s 26064 The following recent
        security patches are included in the tarball
        CVE-2013-0151-xsa34.patch (bnc#797285)
        CVE-2012-6075-xsa41.patch (bnc#797523)
        CVE-2013-1917-xsa44.patch (bnc#813673)
        CVE-2013-1919-xsa46.patch (bnc#813675)
    
      - bnc#816159 - xen: CVE-2013-1918: XSA-45: Several long
        latency operations are not preemptible
    
      - bnc#816163 - xen: CVE-2013-1952: XSA-49: VT-d interrupt
        remapping source validation flaw for bridges
    
      - bnc#809662 - can't use pv-grub to start domU (pygrub
        does work) xen.spec
    
      - bnc#814709 - Unable to create XEN virtual machines in
        SLED 11 SP2 on Kyoto
    
      - bnc#813673 - CVE-2013-1917: xen: Xen PV DoS
        vulnerability with SYSENTER
    
      - bnc#813675 - CVE-2013-1919: xen: Several access
        permission issues with IRQs for unprivileged guests
    
      - bnc#814059 - xen: qemu-nbd format-guessing due to
        missing format specification"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=797285"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=797523"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=801663"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=802221"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=808085"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=808269"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=809662"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=813673"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=813675"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=814059"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=814709"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=816159"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=816163"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=817068"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=817210"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=817799"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=817904"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=818183"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=819416"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=820917"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=820919"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=820920"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=823011"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=823608"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=824676"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=826882"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://lists.opensuse.org/opensuse-updates/2013-09/msg00007.html"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-debugsource");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-html");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-pdf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-default");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-default-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-desktop");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-desktop-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-pae");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-kmp-pae-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU-debuginfo");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.3");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2013/08/25");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"SuSE Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/SuSE/release");
    if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
    if (release !~ "^(SUSE12\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.3", release);
    if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    ourarch = get_kb_item("Host/cpu");
    if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
    if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
    
    flag = 0;
    
    if ( rpm_check(release:"SUSE12.3", reference:"xen-debugsource-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-devel-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-default-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-default-debuginfo-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-desktop-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-desktop-debuginfo-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-pae-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-kmp-pae-debuginfo-4.2.2_06_k3.7.10_1.16-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-libs-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-libs-debuginfo-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-tools-domU-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", reference:"xen-tools-domU-debuginfo-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-doc-html-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-doc-pdf-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-libs-32bit-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-tools-4.2.2_06-1.16.1") ) flag++;
    if ( rpm_check(release:"SUSE12.3", cpu:"x86_64", reference:"xen-tools-debuginfo-4.2.2_06-1.16.1") ) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen");
    }
    
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2013-0074.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - x86: check segment descriptor read result in 64-bit OUTS emulation XSA-67 (Matthew Daley) [orabug 17571640] (CVE-2013-4368) - x86: properly set up fbld emulation operand address XSA-66 (Jan Beulich) [orabug 17472492] (CVE-2013-4361) - x86: properly handle hvm_copy_from_guest_[phys,virt] errors XSA-63 (Jan Beulich) [orabug 17472461] (CVE-2013-4355) - libxc: builder: limit maximum size of kernel/ramdisk (Ian Campbell) [orabug 15852491] (CVE-2012-4544) - libxc: builder: Correct fix for CVE-2012-4544 (Ian Campbell) [orabug 15852491] (CVE-2012-4544) - [PATCH 01/21] libelf: abolish libelf-relocate.c (Ian Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196) - [PATCH 02/21] libxc: introduce xc_dom_seg_to_ptr_pages (Ian Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196) - [PATCH 03/21] libxc: Fix range checking in xc_dom_pfn_to_ptr etc. (Ian Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196) - [PATCH 04/21] libelf: abolish elf_sval and elf_access_signed (Ian Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196) - [PATCH 05/21] libelf/xc_dom_load_elf_symtab: Do not use
    last seen2020-06-01
    modified2020-06-02
    plugin id79521
    published2014-11-26
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79521
    titleOracleVM 2.2 : xen (OVMSA-2013-0074)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from OracleVM
    # Security Advisory OVMSA-2013-0074.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(79521);
      script_version("1.4");
      script_cvs_date("Date: 2019/09/27 13:00:34");
    
      script_cve_id("CVE-2012-4544", "CVE-2013-1432", "CVE-2013-1918", "CVE-2013-1919", "CVE-2013-2194", "CVE-2013-2195", "CVE-2013-2196", "CVE-2013-4355", "CVE-2013-4361", "CVE-2013-4368");
      script_bugtraq_id(56289, 59292, 59615, 60701, 60702, 60703, 60799, 62708, 62710, 62935);
    
      script_name(english:"OracleVM 2.2 : xen (OVMSA-2013-0074)");
      script_summary(english:"Checks the RPM output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote OracleVM host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote OracleVM system is missing necessary patches to address
    critical security updates :
    
      - x86: check segment descriptor read result in 64-bit OUTS
        emulation XSA-67 (Matthew Daley) [orabug 17571640]
        (CVE-2013-4368)
    
      - x86: properly set up fbld emulation operand address
        XSA-66 (Jan Beulich) [orabug 17472492] (CVE-2013-4361)
    
      - x86: properly handle hvm_copy_from_guest_[phys,virt]
        errors XSA-63 (Jan Beulich) [orabug 17472461]
        (CVE-2013-4355)
    
      - libxc: builder: limit maximum size of kernel/ramdisk
        (Ian Campbell) [orabug 15852491] (CVE-2012-4544)
    
      - libxc: builder: Correct fix for CVE-2012-4544 (Ian
        Campbell) [orabug 15852491] (CVE-2012-4544)
    
      - [PATCH 01/21] libelf: abolish libelf-relocate.c (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 02/21] libxc: introduce xc_dom_seg_to_ptr_pages
        (Ian Jackson) [orabug 16902308] (CVE-2013-2194
        CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 03/21] libxc: Fix range checking in
        xc_dom_pfn_to_ptr etc. (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 04/21] libelf: abolish elf_sval and
        elf_access_signed (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 05/21] libelf/xc_dom_load_elf_symtab: Do not use
        'syms' uninitialised (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 06/21] libelf: introduce macros for memory access
        and pointer handling (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 07/21] tools/xcutils/readnotes: adjust
        print_l1_mfn_valid_note (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 08/21] libelf: check nul-terminated strings
        properly (Ian Jackson) [orabug 16902308] (CVE-2013-2194
        CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 09/21] libelf: check all pointer accesses (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 10/21] libelf: Check pointer references in
        elf_is_elfbinary (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 11/21] libelf: Make all callers call
        elf_check_broken (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 12/21] libelf: use C99 bool for booleans (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 13/21] libelf: use only unsigned integers (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 14/21] libxc: Introduce xc_bitops.h (Ian Jackson)
        [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 15/21] libelf: check loops for running away (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 16/21] libelf: abolish obsolete macros (Ian
        Jackson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - [PATCH 17/21] libxc: Add range checking to
        xc_dom_binloader (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 18/21] libxc: check failure of xc_dom_*_to_ptr,
        xc_map_foreign_range (Ian Jackson) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 19/21] libxc: check return values from malloc
        (Ian Jackson) [orabug 16902308] (CVE-2013-2194
        CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 20/21] libxc: range checks in xc_dom_p2m_host and
        _guest (Ian Jackson) [orabug 16902308] (CVE-2013-2194
        CVE-2013-2195 CVE-2013-2196)
    
      - [PATCH 21/21] libxc: check blob size before proceeding
        in xc_dom_check_gzip (Matthew Daley) [orabug 16902308]
        (CVE-2013-2194 CVE-2013-2195 CVE-2013-2196)
    
      - libxc: define INVALID_MFN for the XSA-55 patchset (Chuck
        Anderson) [orabug 16902308] (CVE-2013-2194 CVE-2013-2195
        CVE-2013-2196)
    
      - fix page refcount handling in page table pin error path
        (Andrew Cooper) [orabug 16949882] (CVE-2013-1432)
    
      - remove CVE-2013-1919 (Chuck Anderson) [orabug 16635741]
        (CVE-2013-1919)
    
      - x86: make vcpu_destroy_pagetables preemptible (Jan
        Beulich) [orabug 16714903] (CVE-2013-1918)
    
      - x86: make new_guest_cr3 preemptible (Jan Beulich)
        [orabug 16714903] (CVE-2013-1918)
    
      - x86: make MMUEXT_NEW_USER_BASEPTR preemptible (Jan
        Beulich) [orabug 16714903] (CVE-2013-1918)
    
      - x86: make vcpu_reset preemptible (Jan Beulich) [orabug
        16714903] (CVE-2013-1918)
    
      - x86: make arch_set_info_guest preemptible (Jan Beulich)
        [orabug 16714903] (CVE-2013-1918)
    
      - x86: make page table unpinning preemptible (Jan Beulich)
        [orabug 16714903] (CVE-2013-1918)
    
      - x86: make page table handling error paths preemptible
        (Jan Beulich) [orabug 16714903] (CVE-2013-1918)"
      );
      # https://oss.oracle.com/pipermail/oraclevm-errata/2013-October/000185.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?82e75a28"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-64");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-debugger");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-pvhvm-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:2.2");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/31");
      script_set_attribute(attribute:"patch_publication_date", value:"2013/10/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/26");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"OracleVM Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/OracleVM/release");
    if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
    if (! preg(pattern:"^OVS" + "2\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 2.2", "OracleVM " + release);
    if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
    
    flag = 0;
    if (rpm_check(release:"OVS2.2", reference:"xen-3.4.0-0.1.55.el5")) flag++;
    if (rpm_check(release:"OVS2.2", reference:"xen-64-3.4.0-0.1.55.el5")) flag++;
    if (rpm_check(release:"OVS2.2", reference:"xen-debugger-3.4.0-0.1.55.el5")) flag++;
    if (rpm_check(release:"OVS2.2", reference:"xen-devel-3.4.0-0.1.55.el5")) flag++;
    if (rpm_check(release:"OVS2.2", reference:"xen-pvhvm-devel-3.4.0-0.1.55.el5")) flag++;
    if (rpm_check(release:"OVS2.2", reference:"xen-tools-3.4.0-0.1.55.el5")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-64 / xen-debugger / xen-devel / xen-pvhvm-devel / etc");
    }
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3006.NASL
    descriptionMultiple security issues have been discovered in the Xen virtualisation solution which may result in information leaks or denial of service.
    last seen2020-03-17
    modified2014-08-19
    plugin id77240
    published2014-08-19
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/77240
    titleDebian DSA-3006-1 : xen - security update
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Debian Security Advisory DSA-3006. The text 
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(77240);
      script_version("1.6");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2013-1432", "CVE-2013-1442", "CVE-2013-2076", "CVE-2013-2077", "CVE-2013-2078", "CVE-2013-2194", "CVE-2013-2195", "CVE-2013-2196", "CVE-2013-2211", "CVE-2013-4329", "CVE-2013-4355", "CVE-2013-4361", "CVE-2013-4368", "CVE-2013-4494", "CVE-2013-4553", "CVE-2014-1950", "CVE-2014-2599", "CVE-2014-3124", "CVE-2014-4021");
      script_bugtraq_id(60277, 60278, 60282, 60701, 60702, 60703, 60721, 60799, 62307, 62630, 62708, 62710, 62935, 63494, 63933, 65529, 66407, 67113, 68070);
      script_xref(name:"DSA", value:"3006");
    
      script_name(english:"Debian DSA-3006-1 : xen - security update");
      script_summary(english:"Checks dpkg output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Debian host is missing a security-related update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Multiple security issues have been discovered in the Xen
    virtualisation solution which may result in information leaks or
    denial of service."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://packages.debian.org/source/wheezy/xen"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.debian.org/security/2014/dsa-3006"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade the xen packages.
    
    For the stable distribution (wheezy), these problems have been fixed
    in version 4.1.4-3+deb7u2."
      );
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2014/08/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/19");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Debian Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("debian_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
    if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    if (deb_check(release:"7.0", prefix:"libxen-4.1", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"libxen-dev", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"libxen-ocaml", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"libxen-ocaml-dev", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"libxenstore3.0", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-docs-4.1", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-hypervisor-4.1-amd64", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-hypervisor-4.1-i386", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-system-amd64", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-system-i386", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-utils-4.1", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xen-utils-common", reference:"4.1.4-3+deb7u2")) flag++;
    if (deb_check(release:"7.0", prefix:"xenstore-utils", reference:"4.1.4-3+deb7u2")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2013-0057.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - x86: fix page refcount handling in page table pin error path In the original patch 7 of the series addressing XSA-45 I mistakenly took the addition of the call to get_page_light in alloc_page_type to cover two decrements that would happen: One for the PGT_partial bit that is getting set along with the call, and the other for the page reference the caller hold (and would be dropping on its error path). But of course the additional page reference is tied to the PGT_partial bit, and hence any caller of a function that may leave ->arch.old_guest_table non-NULL for error cleanup purposes has to make sure a respective page reference gets retained. Similar issues were then also spotted elsewhere: In effect all callers of get_page_type_preemptible need to deal with errors in similar ways. To make sure error handling can work this way without leaking page references, a respective assertion gets added to that function. This is CVE-2013-1432 / XSA-58. - libxl: Restrict permissions on PV console device xenstore nodes Matthew Daley has observed that the PV console protocol places sensitive host state into a guest writeable xenstore locations, this includes : - The pty used to communicate between the console backend daemon and its client, allowing the guest administrator to read and write arbitrary host files. - The output file, allowing the guest administrator to write arbitrary host files or to target arbitrary qemu chardevs which include sockets, udp, ptr, pipes etc (see -chardev in qemu(1) for a more complete list). - The maximum buffer size, allowing the guest administrator to consume more resources than the host administrator has configured. - The backend to use (qemu vs xenconsoled), potentially allowing the guest administrator to confuse host software. So we arrange to make the sensitive keys in the xenstore frontend directory read only for the guest. This is safe since the xenstore permissions model, unlike POSIX directory permissions, does not allow the guest to remove and recreate a node if it has write access to the containing directory. There are a few associated wrinkles : - The primary PV console is
    last seen2020-06-01
    modified2020-06-02
    plugin id79513
    published2014-11-26
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79513
    titleOracleVM 3.1 : xen (OVMSA-2013-0057)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-11871.NASL
    descriptionXSA-45/CVE-2013-1918 breaks page reference counting let pygrub handle set default=
    last seen2020-03-17
    modified2013-07-12
    plugin id67327
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/67327
    titleFedora 17 : xen-4.1.5-9.fc17 (2013-11871)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2013-1774-1.NASL
    descriptionXEN has been updated to version 4.2.3 c/s 26170, fixing various bugs and security issues. - CVE-2013-4416: XSA-72: Fixed ocaml xenstored that mishandled oversized message replies - CVE-2013-4355: XSA-63: Fixed information leaks through I/O instruction emulation - CVE-2013-4361: XSA-66: Fixed information leak through fbld instruction emulation - CVE-2013-4368: XSA-67: Fixed information leak through outs instruction emulation - CVE-2013-4369: XSA-68: Fixed possible null dereference when parsing vif ratelimiting info - CVE-2013-4370: XSA-69: Fixed misplaced free in ocaml xc_vcpu_getaffinity stub - CVE-2013-4371: XSA-70: Fixed use-after-free in libxl_list_cpupool under memory pressure - CVE-2013-4375: XSA-71: xen: qemu disk backend (qdisk) resource leak - CVE-2013-1442: XSA-62: Fixed information leak on AVX and/or LWP capable CPUs - CVE-2013-1432: XSA-58: Page reference counting error due to XSA-45/CVE-2013-1918 fixes. Various bugs have also been fixed : - Boot failure with xen kernel in UEFI mode with error
    last seen2020-06-05
    modified2015-05-20
    plugin id83602
    published2015-05-20
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/83602
    titleSUSE SLED11 / SLES11 Security Update : Xen (SUSE-SU-2013:1774-1)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2013-669.NASL
    descriptionXEN was updated to 4.1.5 release. It fixes various bugs and security issues. Issues fixed separately from the 4.1.5 release : - bnc#824676 - Failed to setup devices for vm instance when start multiple vms simultaneously - bnc#XXXXXX - xen: CVE-2013-XXXX: XSA-61: suppress device assignment to HVM guest when there is no IOMMU - Various upstream patches from Jan were integrated. - bnc#823786 - migrate.py support of short options dropped by PTF - bnc#803712 - after live migration rcu_sched_state detected stalls add new option xm migrate --min_remaing <num> - CVE-2013-1432 / bnc#826882 - xen: XSA-58: x86: fix page refcount handling in page table pin error path - CVE-2013-2211 / bnc#823608 - xen: XSA-57: libxl allows guest write access to sensitive console related xenstore keys - bnc#823011 - xen: XSA-55: Multiple vulnerabilities in libelf PV kernel handling - bnc#801663 - performance of mirror lvm unsuitable for production - CVE-2013-1918/ bnc#816159 - xen: CVE-2013-1918: XSA-45: Several long latency operations are not preemptible - CVE-2013-1952 / bnc#816163 - xen: CVE-2013-1952: XSA-49: VT-d interrupt remapping source validation flaw for bridges - CVE-2013-2076 / bnc#820917 - CVE-2013-2076: xen: Information leak on XSAVE/XRSTOR capable AMD CPUs (XSA-52) - CVE-2013-2077 / bnc#820919 - CVE-2013-2077: xen: Hypervisor crash due to missing exception recovery on XRSTOR (XSA-53) - CVE-2013-2078 / bnc#820920 - CVE-2013-2078: xen: Hypervisor crash due to missing exception recovery on XSETBV (XSA-54) - CVE-2013-2072 / bnc#819416 - xen: CVE-2013-2072: XSA-56: Buffer overflow in xencontrol Python bindings affecting xend - Update to Xen 4.1.5 c/s 23509 There were many xen.spec file patches dropped as now being included in the 4.1.5 tarball. - CVE-2013-1918 / bnc#816159 - xen: XSA-45: Several long latency operations are not preemptible - CVE-2013-1952 / bnc#816163 - xen: XSA-49: VT-d interrupt remapping source validation flaw for bridges - bnc#809662 - can
    last seen2020-06-05
    modified2014-06-13
    plugin id75129
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/75129
    titleopenSUSE Security Update : xen (openSUSE-SU-2013:1392-1)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_XEN-201310-131029.NASL
    descriptionXEN has been updated to version 4.2.3 c/s 26170, fixing various bugs and security issues. - XSA-72: Fixed ocaml xenstored that mishandled oversized message replies. (CVE-2013-4416) - XSA-63: Fixed information leaks through I/O instruction emulation. (CVE-2013-4355) - XSA-66: Fixed information leak through fbld instruction emulation. (CVE-2013-4361) - XSA-67: Fixed information leak through outs instruction emulation. (CVE-2013-4368) - XSA-68: Fixed possible null dereference when parsing vif ratelimiting info. (CVE-2013-4369) - XSA-69: Fixed misplaced free in ocaml xc_vcpu_getaffinity stub. (CVE-2013-4370) - XSA-70: Fixed use-after-free in libxl_list_cpupool under memory pressure. (CVE-2013-4371) - XSA-71: xen: qemu disk backend (qdisk) resource leak. (CVE-2013-4375) - XSA-62: Fixed information leak on AVX and/or LWP capable CPUs. (CVE-2013-1442) - XSA-58: Page reference counting error due to XSA-45/CVE-2013-1918 fixes. Various bugs have also been fixed:. (CVE-2013-1432) - Boot failure with xen kernel in UEFI mode with error
    last seen2020-06-05
    modified2013-11-20
    plugin id70969
    published2013-11-20
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/70969
    titleSuSE 11.2 / 11.3 Security Update : Xen (SAT Patch Numbers 8478 / 8479)
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2013-0056.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - x86: fix page refcount handling in page table pin error path In the original patch 7 of the series addressing XSA-45 I mistakenly took the addition of the call to get_page_light in alloc_page_type to cover two decrements that would happen: One for the PGT_partial bit that is getting set along with the call, and the other for the page reference the caller hold (and would be dropping on its error path). But of course the additional page reference is tied to the PGT_partial bit, and hence any caller of a function that may leave ->arch.old_guest_table non-NULL for error cleanup purposes has to make sure a respective page reference gets retained. Similar issues were then also spotted elsewhere: In effect all callers of get_page_type_preemptible need to deal with errors in similar ways. To make sure error handling can work this way without leaking page references, a respective assertion gets added to that function. This is CVE-2013-1432 / XSA-58. - libxl: Restrict permissions on PV console device xenstore nodes Matthew Daley has observed that the PV console protocol places sensitive host state into a guest writeable xenstore locations, this includes : - The pty used to communicate between the console backend daemon and its client, allowing the guest administrator to read and write arbitrary host files. - The output file, allowing the guest administrator to write arbitrary host files or to target arbitrary qemu chardevs which include sockets, udp, ptr, pipes etc (see -chardev in qemu(1) for a more complete list). - The maximum buffer size, allowing the guest administrator to consume more resources than the host administrator has configured. - The backend to use (qemu vs xenconsoled), potentially allowing the guest administrator to confuse host software. So we arrange to make the sensitive keys in the xenstore frontend directory read only for the guest. This is safe since the xenstore permissions model, unlike POSIX directory permissions, does not allow the guest to remove and recreate a node if it has write access to the containing directory. There are a few associated wrinkles : - The primary PV console is
    last seen2020-06-01
    modified2020-06-02
    plugin id79512
    published2014-11-26
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79512
    titleOracleVM 3.2 : xen (OVMSA-2013-0056)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-11874.NASL
    descriptionXSA-45/CVE-2013-1918 breaks page reference counting let pygrub handle set default=
    last seen2020-03-17
    modified2013-07-12
    plugin id67328
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/67328
    titleFedora 18 : xen-4.2.2-10.fc18 (2013-11874)