Vulnerabilities > CVE-2017-5579 - Memory Leak vulnerability in multiple products

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2017-01925dba3c.
#

include("compat.inc");

if (description)
{
  script_id(99486);
  script_version("3.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-8667", "CVE-2017-5579");
  script_xref(name:"FEDORA", value:"2017-01925dba3c");

  script_name(english:"Fedora 25 : 2:qemu (2017-01925dba3c)");
  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:
"  - chardev data is dropped when host side closed (bz
    #1352977)

  - CVE-2016-8667: dma: divide by zero error in
    set_next_tick (bz #1384876)

  - IPv6 DNS problems in qemu user networking (bz #1401165)

  - Fix crash in qxl memslot_get_virt (bz #1405847)

  - CVE-2017-5579: serial: fix memory leak in serial exit
    (bz #1416161)

  - spec: Pull in ipxe/vgabios links via -common package (bz
    #1431403)

  - Clean up binfmt.d configuration files (bz #1394859)

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2017-01925dba3c"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected 2:qemu package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:2:qemu");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:25");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/20");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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 = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^25([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 25", "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:"FC25", reference:"qemu-2.7.1-6.fc25", epoch:"2")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "2:qemu");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(130689);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id(
    "CVE-2013-4526",
    "CVE-2013-4530",
    "CVE-2013-4539",
    "CVE-2013-4540",
    "CVE-2013-4544",
    "CVE-2015-4037",
    "CVE-2015-5279",
    "CVE-2015-7549",
    "CVE-2016-2538",
    "CVE-2016-2841",
    "CVE-2016-7161",
    "CVE-2016-7908",
    "CVE-2017-18043",
    "CVE-2017-5579",
    "CVE-2017-5667",
    "CVE-2017-5987",
    "CVE-2017-9373",
    "CVE-2017-9374",
    "CVE-2017-9503",
    "CVE-2018-10839",
    "CVE-2018-12126",
    "CVE-2018-12127",
    "CVE-2018-12130",
    "CVE-2019-11091",
    "CVE-2019-12155",
    "CVE-2019-6778",
    "CVE-2019-9824"
  );
  script_bugtraq_id(
    66955,
    67483,
    74809
  );

  script_name(english:"EulerOS 2.0 SP5 : qemu-kvm (EulerOS-SA-2019-2227)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the qemu-kvm packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a
    heap-based buffer overflow.(CVE-2019-6778)

  - The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka
    Quick Emulator) allows local guest OS privileged users
    to cause a denial of service (NULL pointer dereference
    and QEMU process crash) by leveraging failure to define
    the .write method.(CVE-2015-7549)

  - The ne2000_receive function in the NE2000 NIC emulation
    support (hw/net/ne2000.c) in QEMU before 2.5.1 allows
    local guest OS administrators to cause a denial of
    service (infinite loop and QEMU process crash) via
    crafted values for the PSTART and PSTOP registers,
    involving ring buffer control.(CVE-2016-2841)

  - Memory leak in QEMU (aka Quick Emulator), when built
    with USB EHCI Emulation support, allows local guest OS
    privileged users to cause a denial of service (memory
    consumption) by repeatedly hot-unplugging the
    device.(CVE-2017-9374)

  - Integer overflow in the macro ROUND_UP (n, d) in Quick
    Emulator (Qemu) allows a user to cause a denial of
    service (Qemu process crash).(CVE-2017-18043)

  - Memory leak in the serial_exit_core function in
    hw/char/serial.c in QEMU (aka Quick Emulator) allows
    local guest OS privileged users to cause a denial of
    service (host memory consumption and QEMU process
    crash) via a large number of device unplug
    operations.(CVE-2017-5579)

  - The slirp_smb function in net/slirp.c in QEMU 2.3.0 and
    earlier creates temporary files with predictable names,
    which allows local users to cause a denial of service
    (instantiation failure) by creating /tmp/qemu-smb.*-*
    files before the program.(CVE-2015-4037)

  - The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU
    (aka Quick Emulator) does not properly limit the buffer
    descriptor count when transmitting packets, which
    allows local guest OS administrators to cause a denial
    of service (infinite loop and QEMU process crash) via
    vectors involving a buffer descriptor with a length of
    0 and crafted values in bd.flags.(CVE-2016-7908)

  - hw/net/vmxnet3.c in QEMU 2.0.0-rc0, 1.7.1, and earlier
    allows local guest users to cause a denial of service
    or possibly execute arbitrary code via vectors related
    to (1) RX or (2) TX queue numbers or (3) interrupt
    indices. NOTE: some of these details are obtained from
    third party information.(CVE-2013-4544)

  - Multiple integer overflows in the USB Net device
    emulator (hw/usb/dev-network.c) in QEMU before 2.5.1
    allow local guest OS administrators to cause a denial
    of service (QEMU process crash) or obtain sensitive
    host memory information via a remote NDIS control
    message packet that is mishandled in the (1)
    rndis_query_response, (2) rndis_set_response, or (3)
    usb_net_handle_dataout function.(CVE-2016-2538)

  - Qemu emulator <= 3.0.0 built with the NE2000 NIC
    emulation support is vulnerable to an integer overflow,
    which could lead to buffer overflow issue. It could
    occur when receiving packets over the network. A user
    inside guest could use this flaw to crash the Qemu
    process resulting in DoS.(CVE-2018-10839)

  - Memory leak in QEMU (aka Quick Emulator), when built
    with IDE AHCI Emulation support, allows local guest OS
    privileged users to cause a denial of service (memory
    consumption) by repeatedly hot-unplugging the AHCI
    device.(CVE-2017-9373)

  - tcp_emu in slirp/tcp_subr.c (aka slirp/src/tcp_subr.c)
    in QEMU 3.0.0 uses uninitialized data in an snprintf
    call, leading to Information disclosure.(CVE-2019-9824)

  - QEMU (aka Quick Emulator), when built with MegaRAID SAS
    8708EM2 Host Bus Adapter emulation support, allows
    local guest OS privileged users to cause a denial of
    service (NULL pointer dereference and QEMU process
    crash) via vectors involving megasas command
    processing.(CVE-2017-9503)

  - Buffer overflow in hw/ide/ahci.c in QEMU before 1.7.2
    allows remote attackers to cause a denial of service
    and possibly execute arbitrary code via vectors related
    to migrating ports.(CVE-2013-4526)

  - Buffer overflow in hw/ssi/pl022.c in QEMU before 1.7.2
    allows remote attackers to cause a denial of service or
    possibly execute arbitrary code via crafted
    tx_fifo_head and rx_fifo_head values in a savevm
    image.(CVE-2013-4530)

  - Multiple buffer overflows in the tsc210x_load function
    in hw/input/tsc210x.c in QEMU before 1.7.2 might allow
    remote attackers to execute arbitrary code via a
    crafted (1) precision, (2) nextprecision, (3) function,
    or (4) nextfunction value in a savevm
    image.(CVE-2013-4539)

  - Buffer overflow in scoop_gpio_handler_update in QEMU
    before 1.7.2 might allow remote attackers to execute
    arbitrary code via a large (1) prev_level, (2)
    gpio_level, or (3) gpio_dir value in a savevm
    image.(CVE-2013-4540)

  - The sdhci_sdma_transfer_multi_blocks function in
    hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local
    OS guest privileged users to cause a denial of service
    (infinite loop and QEMU process crash) via vectors
    involving the transfer mode register during multi block
    transfer.(CVE-2017-5987)

  - Microarchitectural Store Buffer Data Sampling (MSBDS):
    Store buffers on some microprocessors utilizing
    speculative execution may allow an authenticated user
    to potentially enable information disclosure via a side
    channel with local access. A list of impacted products
    can be found here:
    https://www.intel.com/content/dam/www/public/us/en/docu
    ments/corporate-information/SA00233-microcode-update-gu
    idance_05132019.pdf(CVE-2018-12126)

  - Microarchitectural Load Port Data Sampling (MLPDS):
    Load ports on some microprocessors utilizing
    speculative execution may allow an authenticated user
    to potentially enable information disclosure via a side
    channel with local access. A list of impacted products
    can be found here:
    https://www.intel.com/content/dam/www/public/us/en/docu
    ments/corporate-information/SA00233-microcode-update-gu
    idance_05132019.pdf(CVE-2018-12127)

  - Microarchitectural Fill Buffer Data Sampling (MFBDS):
    Fill buffers on some microprocessors utilizing
    speculative execution may allow an authenticated user
    to potentially enable information disclosure via a side
    channel with local access. A list of impacted products
    can be found here:
    https://www.intel.com/content/dam/www/public/us/en/docu
    ments/corporate-information/SA00233-microcode-update-gu
    idance_05132019.pdf(CVE-2018-12130)

  - Microarchitectural Data Sampling Uncacheable Memory
    (MDSUM): Uncacheable memory on some microprocessors
    utilizing speculative execution may allow an
    authenticated user to potentially enable information
    disclosure via a side channel with local access. A list
    of impacted products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/docu
    ments/corporate-information/SA00233-microcode-update-gu
    idance_05132019.pdf(CVE-2019-11091)

  - interface_release_resource in hw/display/qxl.c in QEMU
    4.0.0 has a NULL pointer dereference.(CVE-2019-12155)

  - Heap-based buffer overflow in the .receive callback of
    xlnx.xps-ethernetlite in QEMU (aka Quick Emulator)
    allows attackers to execute arbitrary code on the QEMU
    host via a large ethlite packet.(CVE-2016-7161)

  - Heap-based buffer overflow in the ne2000_receive
    function in hw/net/ne2000.c in QEMU before 2.4.0.1
    allows guest OS users to cause a denial of service
    (instance crash) or possibly execute arbitrary code via
    vectors related to receiving packets.(CVE-2015-5279)

  - The sdhci_sdma_transfer_multi_blocks function in
    hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local
    guest OS privileged users to cause a denial of service
    (out-of-bounds heap access and crash) or execute
    arbitrary code on the QEMU host via vectors involving
    the data transfer length.(CVE-2017-5667)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2227
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?95b359a0");
  script_set_attribute(attribute:"solution", value:
"Update the affected qemu-kvm packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:"patch_publication_date", value:"2019/10/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["qemu-img-1.5.3-156.5.h14.eulerosv2r7",
        "qemu-kvm-1.5.3-156.5.h14.eulerosv2r7",
        "qemu-kvm-common-1.5.3-156.5.h14.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-kvm");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124908);
  script_version("1.5");
  script_cvs_date("Date: 2019/06/27 13:33:25");

  script_cve_id(
    "CVE-2016-9602",
    "CVE-2017-13672",
    "CVE-2017-13673",
    "CVE-2017-14167",
    "CVE-2017-15119",
    "CVE-2017-15124",
    "CVE-2017-15268",
    "CVE-2017-18043",
    "CVE-2017-5579",
    "CVE-2017-8284",
    "CVE-2017-8379",
    "CVE-2017-9330",
    "CVE-2017-9373",
    "CVE-2018-10839",
    "CVE-2018-12617",
    "CVE-2018-7550"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.1.0 : qemu-kvm (EulerOS-SA-2019-1405)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the qemu-kvm packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :

  - An integer overflow issue was found in the NE200 NIC
    emulation. It could occur while receiving packets from
    the network, if the size value was greater than
    INT_MAX. Such overflow would lead to stack buffer
    overflow issue. A user inside guest could use this flaw
    to crash the QEMU process, resulting in DoS scenario.
    (CVE-2018-10839)

  - qmp_guest_file_read in qga/commands-posix.c and
    qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent)
    in QEMU 2.12.50 has an integer overflow causing a
    g_malloc0() call to trigger a segmentation fault when
    trying to allocate a large memory chunk. The
    vulnerability can be exploited by sending a crafted QMP
    command (including guest-file-read with a large count
    value) to the agent via the listening
    socket.(CVE-2018-12617)

  - Qemu before version 2.9 is vulnerable to an improper
    link following when built with the VirtFS. A privileged
    user inside guest could use this flaw to access host
    file system beyond the shared folder and potentially
    escalating their privileges on a host. (CVE-2016-9602)

  - Quick Emulator (QEMU), compiled with the PC System
    Emulator with multiboot feature support, is vulnerable
    to an OOB r/w memory access issue. The issue could
    occur while loading a kernel image during the guest
    boot, if mh_load_end_addr address is greater than the
    mh_bss_end_addr address. A user or process could use
    this flaw to potentially achieve arbitrary code
    execution on a host.(CVE-2018-7550)

  - An out-of-bounds read access issue was found in the VGA
    display emulator built into the Quick emulator (QEMU).
    It could occur while reading VGA memory to update
    graphics display. A privileged user/process inside
    guest could use this flaw to crash the QEMU process on
    the host resulting in denial of service
    situation.(CVE-2017-13672)

  - An assert failure issue was found in the VGA display
    emulator built into the Quick emulator (QEMU). It could
    occur while updating graphics display, due to
    miscalculating region for dirty bitmap snapshot in
    split screen mode. A privileged user/process inside
    guest could use this flaw to crash the QEMU process on
    the host resulting in denial of service.
    (CVE-2017-13673)

  - The Network Block Device (NBD) server in Quick Emulator
    (QEMU), is 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.(CVE-2017-15119)

  - QEMU (aka Quick Emulator) before 2.9.0, when built with
    the USB OHCI Emulation support, allows local guest OS
    users to cause a denial of service (infinite loop) by
    leveraging an incorrect return value, a different
    vulnerability than CVE-2017-6505.(CVE-2017-9330)

  - Integer overflow in the macro ROUND_UP (n, d) in Quick
    Emulator (Qemu) allows a user to cause a denial of
    service (Qemu process crash). (CVE-2017-18043)

  - 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.(CVE-2017-15124)

  - A memory leakage issue was found in the I/O channels
    websockets implementation of the Quick Emulator (QEMU).
    It could occur while sending screen updates to a
    client, which is slow to read and process them further.
    A privileged guest user could use this flaw to cause a
    denial of service on the host and/or potentially crash
    the QEMU process instance on the host.(CVE-2017-15268)

  - Quick Emulator (QEMU), compiled with the PC System
    Emulator with multiboot feature support, is vulnerable
    to an OOB r/w memory access issue. The issue could
    occur due to an integer overflow while loading a kernel
    image during a guest boot. A user or process could use
    this flaw to potentially achieve arbitrary code
    execution on a host.(CVE-2017-14167)

  - Memory leak in QEMU (aka Quick Emulator), when built
    with IDE AHCI Emulation support, allows local guest OS
    privileged users to cause a denial of service (memory
    consumption) by repeatedly hot-unplugging the AHCI
    device.(CVE-2017-9373)

  - Memory leak in the serial_exit_core function in
    hw/char/serial.c in QEMU (aka Quick Emulator) allows
    local guest OS privileged users to cause a denial of
    service (host memory consumption and QEMU process
    crash) via a large number of device unplug
    operations.(CVE-2017-5579)

  - ** DISPUTED ** The disas_insn function in
    target/i386/translate.c in QEMU before 2.9.0, when TCG
    mode without hardware acceleration is used, does not
    limit the instruction size, which allows local users to
    gain privileges by creating a modified basic block that
    injects code into a setuid program, as demonstrated by
    procmail. NOTE: the vendor has stated 'this bug does
    not violate any security guarantees QEMU
    makes.'(CVE-2017-8284)

  - Memory leak in the keyboard input event handlers
    support in QEMU (aka Quick Emulator) allows local guest
    OS privileged users to cause a denial of service (host
    memory consumption) by rapidly generating large
    keyboard events.(CVE-2017-8379)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1405
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?21fa9e3c");
  script_set_attribute(attribute:"solution", value:
"Update the affected qemu-kvm packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/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:L/UI:N/S:U/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:"patch_publication_date", value:"2019/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.1.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.1.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.1.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["qemu-img-2.8.1-30.025",
        "qemu-kvm-2.8.1-30.025",
        "qemu-kvm-common-2.8.1-30.025",
        "qemu-kvm-tools-2.8.1-30.025"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-kvm");
}