Vulnerabilities > CVE-2017-17381 - Divide By Zero vulnerability in multiple products

047910
CVSS 6.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
qemu
debian
CWE-369
nessus

Summary

The Virtio Vring implementation in QEMU allows local OS guest users to cause a denial of service (divide-by-zero error and QEMU process crash) by unsetting vring alignment while updating Virtio rings.

Vulnerable Configurations

Part Description Count
Application
Qemu
258
OS
Debian
1

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3575-1.NASL
    descriptionIt was discovered that QEMU incorrectly handled guest ram. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-11334) David Buchanan discovered that QEMU incorrectly handled the VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 17.10. (CVE-2017-13672) Thomas Garnier discovered that QEMU incorrectly handled multiboot. An attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-14167) Tuomas Tynkkynen discovered that QEMU incorrectly handled VirtFS directory sharing. An attacker could use this issue to obtain sensitive information from host memory. (CVE-2017-15038) Eric Blake discovered that QEMU incorrectly handled memory in the NBD server. An attacker could use this issue to cause the NBD server to crash, resulting in a denial of service. This issue only affected Ubuntu 17.10. (CVE-2017-15118) Eric Blake discovered that QEMU incorrectly handled certain options to the NBD server. An attacker could use this issue to cause the NBD server to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-15119) Daniel Berrange discovered that QEMU incorrectly handled the VNC server. A remote attacker could possibly use this issue to consume memory, resulting in a denial of service. This issue was only addressed in Ubuntu 17.10. (CVE-2017-15124) Carl Brassey discovered that QEMU incorrectly handled certain websockets. A remote attacker could possibly use this issue to consume memory, resulting in a denial of service. This issue only affected Ubuntu 17.10. (CVE-2017-15268) Guoxiang Niu discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-15289) Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values during migration. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-16845) It was discovered that QEMU incorrectly handled the Virtio Vring implementation. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-17381) Eric Blake discovered that QEMU incorrectly handled certain rounding operations. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-18043) Jiang Xin and Lin ZheCheng discovered that QEMU incorrectly handled the VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-5683). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id106927
    published2018-02-21
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106927
    titleUbuntu 14.04 LTS / 16.04 LTS / 17.10 : qemu vulnerabilities (USN-3575-1)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Ubuntu Security Notice USN-3575-1. The text 
    # itself is copyright (C) Canonical, Inc. See 
    # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
    # trademark of Canonical, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(106927);
      script_version("3.7");
      script_cvs_date("Date: 2019/09/18 12:31:48");
    
      script_cve_id("CVE-2017-11334", "CVE-2017-13672", "CVE-2017-14167", "CVE-2017-15038", "CVE-2017-15118", "CVE-2017-15119", "CVE-2017-15124", "CVE-2017-15268", "CVE-2017-15289", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18043", "CVE-2018-5683");
      script_xref(name:"USN", value:"3575-1");
    
      script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : qemu vulnerabilities (USN-3575-1)");
      script_summary(english:"Checks dpkg output for updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Ubuntu host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "It was discovered that QEMU incorrectly handled guest ram. A
    privileged attacker inside the guest could use this issue to cause
    QEMU to crash, resulting in a denial of service. This issue only
    affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-11334)
    
    David Buchanan discovered that QEMU incorrectly handled the VGA
    device. A privileged attacker inside the guest could use this issue to
    cause QEMU to crash, resulting in a denial of service. This issue was
    only addressed in Ubuntu 17.10. (CVE-2017-13672)
    
    Thomas Garnier discovered that QEMU incorrectly handled multiboot. An
    attacker could use this issue to cause QEMU to crash, resulting in a
    denial of service, or possibly execute arbitrary code on the host. In
    the default installation, when QEMU is used with libvirt, attackers
    would be isolated by the libvirt AppArmor profile. This issue only
    affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-14167)
    
    Tuomas Tynkkynen discovered that QEMU incorrectly handled VirtFS
    directory sharing. An attacker could use this issue to obtain
    sensitive information from host memory. (CVE-2017-15038)
    
    Eric Blake discovered that QEMU incorrectly handled memory in the NBD
    server. An attacker could use this issue to cause the NBD server to
    crash, resulting in a denial of service. This issue only affected
    Ubuntu 17.10. (CVE-2017-15118)
    
    Eric Blake discovered that QEMU incorrectly handled certain options to
    the NBD server. An attacker could use this issue to cause the NBD
    server to crash, resulting in a denial of service. This issue only
    affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-15119)
    
    Daniel Berrange discovered that QEMU incorrectly handled the VNC
    server. A remote attacker could possibly use this issue to consume
    memory, resulting in a denial of service. This issue was only
    addressed in Ubuntu 17.10. (CVE-2017-15124)
    
    Carl Brassey discovered that QEMU incorrectly handled certain
    websockets. A remote attacker could possibly use this issue to consume
    memory, resulting in a denial of service. This issue only affected
    Ubuntu 17.10. (CVE-2017-15268)
    
    Guoxiang Niu discovered that QEMU incorrectly handled the Cirrus VGA
    device. A privileged attacker inside the guest could use this issue to
    cause QEMU to crash, resulting in a denial of service.
    (CVE-2017-15289)
    
    Cyrille Chatras discovered that QEMU incorrectly handled certain PS2
    values during migration. An attacker could possibly use this issue to
    cause QEMU to crash, resulting in a denial of service, or possibly
    execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
    Ubuntu 17.10. (CVE-2017-16845)
    
    It was discovered that QEMU incorrectly handled the Virtio Vring
    implementation. An attacker could possibly use this issue to cause
    QEMU to crash, resulting in a denial of service. This issue only
    affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-17381)
    
    Eric Blake discovered that QEMU incorrectly handled certain rounding
    operations. An attacker could possibly use this issue to cause QEMU to
    crash, resulting in a denial of service. This issue only affected
    Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-18043)
    
    Jiang Xin and Lin ZheCheng discovered that QEMU incorrectly handled
    the VGA device. A privileged attacker inside the guest could use this
    issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2018-5683).
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Ubuntu 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://usn.ubuntu.com/3575-1/"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/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:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-aarch64");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-arm");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-mips");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-misc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-ppc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-s390x");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-sparc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-x86");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.10");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/02");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/02/20");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/21");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Ubuntu Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("ubuntu.inc");
    include("misc_func.inc");
    
    if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/Ubuntu/release");
    if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
    release = chomp(release);
    if (! preg(pattern:"^(14\.04|16\.04|17\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 17.10", "Ubuntu " + release);
    if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);
    
    flag = 0;
    
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-aarch64", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-arm", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-mips", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-misc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-ppc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-sparc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-x86", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-aarch64", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-arm", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-mips", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-misc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-ppc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-s390x", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-sparc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-x86", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-aarch64", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-arm", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-mips", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-misc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-ppc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-s390x", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-sparc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-x86", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : ubuntu_report_get()
      );
      exit(0);
    }
    else
    {
      tested = ubuntu_pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-system / qemu-system-aarch64 / qemu-system-arm / etc");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0831-1.NASL
    descriptionThis update for qemu fixes the following issues: This update has the next round of Spectre v2 related patches, which now integrate with corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The January 2018 release of qemu initially addressed the Spectre v2 vulnerability for KVM guests by exposing the spec-ctrl feature for all x86 vcpu types, which was the quick and dirty approach, but not the proper solution. We replaced our initial patch by the patches from upstream. This update defines spec_ctrl and ibpb cpu feature flags as well as new cpu models which are clones of existing models with either -IBRS or -IBPB added to the end of the model name. These new vcpu models explicitly include the new feature(s), whereas the feature flags can be added to the cpu parameter as with other features. In short, for continued Spectre v2 protection, ensure that either the appropriate cpu feature flag is added to the QEMU command-line, or one of the new cpu models is used. Although migration from older versions is supported, the new cpu features won
    last seen2020-06-01
    modified2020-06-02
    plugin id108686
    published2018-03-28
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108686
    titleSUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:0831-1) (Spectre)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from SUSE update advisory SUSE-SU-2018:0831-1.
    # The text itself is copyright (C) SUSE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(108686);
      script_version("1.7");
      script_cvs_date("Date: 2019/09/10 13:51:47");
    
      script_cve_id("CVE-2017-15119", "CVE-2017-15124", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18030", "CVE-2017-18043", "CVE-2017-5715", "CVE-2018-5683", "CVE-2018-7550");
      script_xref(name:"IAVA", value:"2018-A-0020");
    
      script_name(english:"SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:0831-1) (Spectre)");
      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:
    "This update for qemu fixes the following issues: This update has the
    next round of Spectre v2 related patches, which now integrate with
    corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The
    January 2018 release of qemu initially addressed the Spectre v2
    vulnerability for KVM guests by exposing the spec-ctrl feature for all
    x86 vcpu types, which was the quick and dirty approach, but not the
    proper solution. We replaced our initial patch by the patches from
    upstream. This update defines spec_ctrl and ibpb cpu feature flags as
    well as new cpu models which are clones of existing models with either
    -IBRS or -IBPB added to the end of the model name. These new vcpu
    models explicitly include the new feature(s), whereas the feature
    flags can be added to the cpu parameter as with other features. In
    short, for continued Spectre v2 protection, ensure that either the
    appropriate cpu feature flag is added to the QEMU command-line, or one
    of the new cpu models is used. Although migration from older versions
    is supported, the new cpu features won't be properly exposed to the
    guest until it is restarted with the cpu features explicitly added. A
    reboot is insufficient. A warning patch is added which attempts to
    detect a migration from a qemu version which had the quick and dirty
    fix (it only detects certain cases, but hopefully is helpful.) For
    additional information on Spectre v2 as it relates to QEMU, see:
    https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/ A
    patch is added to continue to detect Spectre v2 mitigation features
    (as shown by cpuid), and if found provide that feature to guests, even
    if running on older KVM (kernel) versions which do not yet expose that
    feature to QEMU. (bsc#1082276) These two patches will be removed when
    we can reasonably assume everyone is running with the appropriate
    updates. Also security fixes for the following CVE issues are 
    included :
    
      - CVE-2017-15119: The Network Block Device (NBD) server in
        Quick Emulator (QEMU), was vulnerable to a denial of
        service issue. It could occur if a client sent large
        option requests, making the server waste CPU time on
        reading up to 4GB per request. A client could use this
        flaw to keep the NBD server from serving other requests,
        resulting in DoS. (bsc#1070144)
    
      - CVE-2017-15124: VNC server implementation in Quick
        Emulator (QEMU) was found to be vulnerable to an
        unbounded memory allocation issue, as it did not
        throttle the framebuffer updates sent to its client. If
        the client did not consume these updates, VNC server
        allocates growing memory to hold onto this data. A
        malicious remote VNC client could use this flaw to cause
        DoS to the server host. (bsc#1073489)
    
      - CVE-2017-16845: The PS2 driver in Qemu did not validate
        'rptr' and 'count' values during guest migration,
        leading to out-of-bounds access. (bsc#1068613)
    
      - CVE-2017-17381: The Virtio Vring implementation in QEMU
        allowed local OS guest users to cause a denial of
        service (divide-by-zero error and QEMU process crash) by
        unsetting vring alignment while updating Virtio rings.
        (bsc#1071228)
    
      - CVE-2017-18030: A problem in the Cirrus driver in Qemu
        allowed local OS guest privileged users to cause a
        denial of service (out-of-bounds array access and QEMU
        process crash) via vectors related to negative pitch.
        (bsc#1076179)
    
      - CVE-2017-18043: Integer overflow in the macro ROUND_UP
        (n, d) in Quick Emulator (Qemu) allowed a user to cause
        a denial of service (Qemu process crash). (bsc#1076775)
    
      - CVE-2018-5683: The VGA driver in Qemu allowed local OS
        guest privileged users to cause a denial of service
        (out-of-bounds read and QEMU process crash) by
        leveraging improper memory address validation.
        (bsc#1076114)
    
      - CVE-2018-7550: The multiboot functionality in Quick
        Emulator (aka QEMU) allowed local guest OS users to
        execute arbitrary code on the QEMU host via an
        out-of-bounds read or write memory access. (bsc#1083291)
        Also the following bugs were fixed :
    
      - Eliminate bogus use of CPUID_7_0_EDX_PRED_CMD which
        we've carried since the initial Spectre v2 patch was
        added. EDX bit 27 of CPUID Leaf 07H, Sub-leaf 0 provides
        status on STIBP, and not the PRED_CMD MSR. Exposing the
        STIBP CPUID feature bit to the guest is wrong in
        general, since the VM doesn't directly control the
        scheduling of physical hyperthreads. This is left
        strictly to the L0 hypervisor.
    
      - Spectre fixes for IBM Z series by providing more hw
        features to guests (bsc#1076814)
    
      - Pre-add group kvm for qemu-tools (bsc#1040202)
    
      - the qemu-tools package also needs a prerequire of group
        management tools, from the shadow package. (bsc#1085598)
    
    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."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1040202"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1068032"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1068613"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1070144"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1071228"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1073489"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076114"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076179"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076775"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076814"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1082276"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1083291"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1085598"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-15119/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-15124/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-16845/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-17381/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-18030/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-18043/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-5715/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-5683/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-7550/"
      );
      # https://www.suse.com/support/update/announcement/2018/suse-su-20180831-1/
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?788addb9"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "To install this SUSE Security Update use the SUSE recommended
    installation methods like YaST online_update or 'zypper patch'.
    
    Alternatively you can run the command listed for your product :
    
    SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
    patch SUSE-SLE-RPI-12-SP2-2018-555=1
    
    SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
    SUSE-SLE-SERVER-12-SP2-2018-555=1
    
    SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
    SUSE-SLE-DESKTOP-12-SP2-2018-555=1"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/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:"exploited_by_malware", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86-debuginfo");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/17");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/03/27");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/28");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2018-2019 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/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 = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
    os_ver = os_ver[1];
    if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "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);
    
    sp = get_kb_item("Host/SuSE/patchlevel");
    if (isnull(sp)) sp = "0";
    if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp);
    if (os_ver == "SLED12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2", os_ver + " SP" + sp);
    
    
    flag = 0;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-x86-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"s390x", reference:"qemu-s390-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", cpu:"s390x", reference:"qemu-s390-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-curl-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-curl-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-ssh-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-ssh-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-debugsource-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-guest-agent-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-guest-agent-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-lang-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-tools-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-tools-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-kvm-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-debugsource-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-kvm-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-debuginfo-2.6.2-41.37.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-41.37.1")) 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, "qemu");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0762-1.NASL
    descriptionThis update for qemu fixes the following issues: This update has the next round of Spectre v2 related patches, which now integrate with corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The January 2018 release of qemu initially addressed the Spectre v2 vulnerability for KVM guests by exposing the spec-ctrl feature for all x86 vcpu types, which was the quick and dirty approach, but not the proper solution. We replaced our initial patch by the patches from upstream. This update defines spec_ctrl and ibpb cpu feature flags as well as new cpu models which are clones of existing models with either -IBRS or -IBPB added to the end of the model name. These new vcpu models explicitly include the new feature(s), whereas the feature flags can be added to the cpu parameter as with other features. In short, for continued Spectre v2 protection, ensure that either the appropriate cpu feature flag is added to the QEMU command-line, or one of the new cpu models is used. Although migration from older versions is supported, the new cpu features won
    last seen2020-06-01
    modified2020-06-02
    plugin id108533
    published2018-03-22
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108533
    titleSUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:0762-1) (Spectre)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from SUSE update advisory SUSE-SU-2018:0762-1.
    # The text itself is copyright (C) SUSE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(108533);
      script_version("1.7");
      script_cvs_date("Date: 2019/09/10 13:51:47");
    
      script_cve_id("CVE-2017-15119", "CVE-2017-15124", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18043", "CVE-2017-5715", "CVE-2018-5683", "CVE-2018-7550");
      script_xref(name:"IAVA", value:"2018-A-0020");
    
      script_name(english:"SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:0762-1) (Spectre)");
      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:
    "This update for qemu fixes the following issues: This update has the
    next round of Spectre v2 related patches, which now integrate with
    corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The
    January 2018 release of qemu initially addressed the Spectre v2
    vulnerability for KVM guests by exposing the spec-ctrl feature for all
    x86 vcpu types, which was the quick and dirty approach, but not the
    proper solution. We replaced our initial patch by the patches from
    upstream. This update defines spec_ctrl and ibpb cpu feature flags as
    well as new cpu models which are clones of existing models with either
    -IBRS or -IBPB added to the end of the model name. These new vcpu
    models explicitly include the new feature(s), whereas the feature
    flags can be added to the cpu parameter as with other features. In
    short, for continued Spectre v2 protection, ensure that either the
    appropriate cpu feature flag is added to the QEMU command-line, or one
    of the new cpu models is used. Although migration from older versions
    is supported, the new cpu features won't be properly exposed to the
    guest until it is restarted with the cpu features explicitly added. A
    reboot is insufficient. A warning patch is added which attempts to
    detect a migration from a qemu version which had the quick and dirty
    fix (it only detects certain cases, but hopefully is helpful.) For
    additional information on Spectre v2 as it relates to QEMU, see:
    https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/ A
    patch is added to continue to detect Spectre v2 mitigation features
    (as shown by cpuid), and if found provide that feature to guests, even
    if running on older KVM (kernel) versions which do not yet expose that
    feature to QEMU. (bsc#1082276) These two patches will be removed when
    we can reasonably assume everyone is running with the appropriate
    updates. Spectre fixes for IBM Z Series were included by providing
    more hw features to guests (bsc#1076813) Also security fixes for the
    following CVE issues are included :
    
      - CVE-2017-17381: The Virtio Vring implementation in QEMU
        allowed local OS guest users to cause a denial of
        service (divide-by-zero error and QEMU process crash) by
        unsetting vring alignment while updating Virtio rings.
        (bsc#1071228)
    
      - CVE-2017-16845: The PS2 driver in Qemu did not validate
        'rptr' and 'count' values during guest migration,
        leading to out-of-bounds access. (bsc#1068613)
    
      - CVE-2017-15119: The Network Block Device (NBD) server in
        Quick Emulator (QEMU), was vulnerable to a denial of
        service issue. It could occur if a client sent large
        option requests, making the server waste CPU time on
        reading up to 4GB per request. A client could use this
        flaw to keep the NBD server from serving other requests,
        resulting in DoS. (bsc#1070144)
    
      - CVE-2017-18043: Integer overflow in the macro ROUND_UP
        (n, d) in Quick Emulator (Qemu) allowed a user to cause
        a denial of service (Qemu process crash). (bsc#1076775)
    
      - CVE-2018-5683: The VGA driver in Qemu allowed local OS
        guest privileged users to cause a denial of service
        (out-of-bounds read and QEMU process crash) by
        leveraging improper memory address validation.
        (bsc#1076114)
    
      - CVE-2018-7550: The multiboot functionality in Quick
        Emulator (aka QEMU) allowed local guest OS users to
        execute arbitrary code on the QEMU host via an
        out-of-bounds read or write memory access. (bsc#1083291)
    
      - CVE-2017-15124: VNC server implementation in Quick
        Emulator (QEMU) was found to be vulnerable to an
        unbounded memory allocation issue, as it did not
        throttle the framebuffer updates sent to its client. If
        the client did not consume these updates, VNC server
        allocates growing memory to hold onto this data. A
        malicious remote VNC client could use this flaw to cause
        DoS to the server host. (bsc#1073489) Additional bugs
        fixed :
    
      - Fix pcihp for 1.6 and older machine types (bsc#1074572)
    
      - Fix packaging dependencies (coreutils) for qemu-ksm
        package (bsc#1040202)
    
    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."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1040202"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1068032"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1068613"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1070144"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1071228"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1073489"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1074572"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076114"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076775"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1076813"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1082276"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.suse.com/show_bug.cgi?id=1083291"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-15119/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-15124/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-16845/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-17381/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-18043/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2017-5715/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-5683/"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.suse.com/security/cve/CVE-2018-7550/"
      );
      # https://www.suse.com/support/update/announcement/2018/suse-su-20180762-1/
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?5676926a"
      );
      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 12-SP3:zypper in -t patch
    SUSE-SLE-SERVER-12-SP3-2018-516=1
    
    SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
    SUSE-SLE-DESKTOP-12-SP3-2018-516=1
    
    SUSE CaaS Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2018-516=1
    
    To bring your system up-to-date, use 'zypper patch'."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/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:"exploited_by_malware", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86-debuginfo");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/17");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/03/21");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/22");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2018-2019 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/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 = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
    os_ver = os_ver[1];
    if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "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);
    
    sp = get_kb_item("Host/SuSE/patchlevel");
    if (isnull(sp)) sp = "0";
    if (os_ver == "SLES12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP3", os_ver + " SP" + sp);
    if (os_ver == "SLED12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP3", os_ver + " SP" + sp);
    
    
    flag = 0;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"qemu-block-rbd-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"qemu-x86-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"qemu-x86-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"s390x", reference:"qemu-s390-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", cpu:"s390x", reference:"qemu-s390-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-curl-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-curl-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-iscsi-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-iscsi-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-ssh-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-block-ssh-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-debugsource-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-guest-agent-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-guest-agent-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-lang-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-tools-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-tools-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLES12", sp:"3", reference:"qemu-kvm-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-block-curl-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-block-curl-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-debugsource-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-kvm-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-tools-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-tools-debuginfo-2.9.1-6.12.1")) flag++;
    if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"qemu-x86-2.9.1-6.12.1")) 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, "qemu");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2018-291.NASL
    descriptionThis update for qemu fixes the following issues : This update has the next round of Spectre v2 related patches, which now integrate with corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The January 2018 release of qemu initially addressed the Spectre v2 vulnerability for KVM guests by exposing the spec-ctrl feature for all x86 vcpu types, which was the quick and dirty approach, but not the proper solution. We replaced our initial patch by the patches from upstream. This update defines spec_ctrl and ibpb cpu feature flags as well as new cpu models which are clones of existing models with either -IBRS or -IBPB added to the end of the model name. These new vcpu models explicitly include the new feature(s), whereas the feature flags can be added to the cpu parameter as with other features. In short, for continued Spectre v2 protection, ensure that either the appropriate cpu feature flag is added to the QEMU command-line, or one of the new cpu models is used. Although migration from older versions is supported, the new cpu features won
    last seen2020-06-05
    modified2018-03-23
    plugin id108576
    published2018-03-23
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108576
    titleopenSUSE Security Update : qemu (openSUSE-2018-291) (Spectre)
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201804-08.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201804-08 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : An attacker could execute arbitrary code, cause a Denial of Service condition, or obtain sensitive information. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id108929
    published2018-04-10
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108929
    titleGLSA-201804-08 : QEMU: Multiple vulnerabilities (Spectre)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3575-2.NASL
    descriptionUSN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused a regression in Xen environments. This update removes the problematic fix pending further investigation. We apologize for the inconvenience. Original advisory details : It was discovered that QEMU incorrectly handled guest ram. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-11334) David Buchanan discovered that QEMU incorrectly handled the VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 17.10. (CVE-2017-13672) Thomas Garnier discovered that QEMU incorrectly handled multiboot. An attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-14167) Tuomas Tynkkynen discovered that QEMU incorrectly handled VirtFS directory sharing. An attacker could use this issue to obtain sensitive information from host memory. (CVE-2017-15038) Eric Blake discovered that QEMU incorrectly handled memory in the NBD server. An attacker could use this issue to cause the NBD server to crash, resulting in a denial of service. This issue only affected Ubuntu 17.10. (CVE-2017-15118) Eric Blake discovered that QEMU incorrectly handled certain options to the NBD server. An attacker could use this issue to cause the NBD server to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-15119) Daniel Berrange discovered that QEMU incorrectly handled the VNC server. A remote attacker could possibly use this issue to consume memory, resulting in a denial of service. This issue was only addressed in Ubuntu 17.10. (CVE-2017-15124) Carl Brassey discovered that QEMU incorrectly handled certain websockets. A remote attacker could possibly use this issue to consume memory, resulting in a denial of service. This issue only affected Ubuntu 17.10. (CVE-2017-15268) Guoxiang Niu discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-15289) Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values during migration. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-16845) It was discovered that QEMU incorrectly handled the Virtio Vring implementation. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-17381) Eric Blake discovered that QEMU incorrectly handled certain rounding operations. An attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-18043) Jiang Xin and Lin ZheCheng discovered that QEMU incorrectly handled the VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-5683). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id107145
    published2018-03-06
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/107145
    titleUbuntu 14.04 LTS / 16.04 LTS : qemu regression (USN-3575-2)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4213.NASL
    descriptionSeveral vulnerabilities were discovered in qemu, a fast processor emulator. - CVE-2017-15038 Tuomas Tynkkynen discovered an information leak in 9pfs. - CVE-2017-15119 Eric Blake discovered that the NBD server insufficiently restricts large option requests, resulting in denial of service. - CVE-2017-15124 Daniel Berrange discovered that the integrated VNC server insufficiently restricted memory allocation, which could result in denial of service. - CVE-2017-15268 A memory leak in websockets support may result in denial of service. - CVE-2017-15289 Guoxiang Niu discovered an OOB write in the emulated Cirrus graphics adaptor which could result in denial of service. - CVE-2017-16845 Cyrille Chatras discovered an information leak in PS/2 mouse and keyboard emulation which could be exploited during instance migration. - CVE-2017-17381 Dengzhan Heyuandong Bijunhua and Liweichao discovered that an implementation error in the virtio vring implementation could result in denial of service. - CVE-2017-18043 Eric Blake discovered an integer overflow in an internally used macro which could result in denial of service. - CVE-2018-5683 Jiang Xin and Lin ZheCheng discovered an OOB memory access in the emulated VGA adaptor which could result in denial of service. - CVE-2018-7550 Cyrille Chatras discovered that an OOB memory write when using multiboot could result in the execution of arbitrary code. This update also backports a number of mitigations against the Spectre v2 vulnerability affecting modern CPUs (CVE-2017-5715 ). For additional information please refer to https://www.qemu.org/2018/01/04/spectre/
    last seen2020-06-01
    modified2020-06-02
    plugin id110208
    published2018-05-30
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110208
    titleDebian DSA-4213-1 : qemu - security update (Spectre)