Vulnerabilities > CVE-2016-9846 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Qemu

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
CWE-119
nessus
NVD
Published: 2016-12-29
Updated: 2020-11-10

Summary

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.

Vulnerable Configurations

Part Description Count
Application
Qemu
230

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2017-0127-1.NASL
    descriptionqemu was updated to fix several issues. These security issues were fixed : - CVE-2016-9102: Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number (bsc#1014256). - CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values writing to them (bsc#1007454). - CVE-2016-9381: Improper processing of shared rings allowing guest administrators take over the qemu process, elevating their privilege to that of the qemu process (bsc#1009109) - CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support was vulnerable to an infinite loop issue while receiving packets in
    last seen2020-06-01
    modified2020-06-02
    plugin id96529
    published2017-01-16
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96529
    titleSUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:0127-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(96529);
  script_version("3.9");
  script_cvs_date("Date: 2019/09/11 11:22:14");

  script_cve_id("CVE-2016-9102", "CVE-2016-9103", "CVE-2016-9381", "CVE-2016-9776", "CVE-2016-9845", "CVE-2016-9846", "CVE-2016-9907", "CVE-2016-9908", "CVE-2016-9911", "CVE-2016-9912", "CVE-2016-9913", "CVE-2016-9921", "CVE-2016-9922");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)");
  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:
"qemu was updated to fix several issues. These security issues were
fixed :

  - CVE-2016-9102: Memory leak in the v9fs_xattrcreate
    function in hw/9pfs/9p.c in allowed local guest OS
    administrators to cause a denial of service (memory
    consumption and QEMU process crash) via a large number
    of Txattrcreate messages with the same fid number
    (bsc#1014256).

  - CVE-2016-9103: The v9fs_xattrcreate function in
    hw/9pfs/9p.c in allowed local guest OS administrators to
    obtain sensitive host heap memory information by reading
    xattribute values writing to them (bsc#1007454).

  - CVE-2016-9381: Improper processing of shared rings
    allowing guest administrators take over the qemu
    process, elevating their privilege to that of the qemu
    process (bsc#1009109)

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller
    emulator support was vulnerable to an infinite loop
    issue while receiving packets in 'mcf_fec_receive'. A
    privileged user/process inside guest could have used
    this issue to crash the Qemu process on the host leading
    to DoS (bsc#1013285).

  - CVE-2016-9845: The Virtio GPU Device emulator support as
    vulnerable to an information leakage issue while
    processing the 'VIRTIO_GPU_CMD_GET_CAPSET_INFO' command.
    A guest user/process could have used this flaw to leak
    contents of the host memory (bsc#1013767).

  - CVE-2016-9846: The Virtio GPU Device emulator support
    was vulnerable to a memory leakage issue while updating
    the cursor data in update_cursor_data_virgl. A guest
    user/process could have used this flaw to leak host
    memory bytes, resulting in DoS for the host
    (bsc#1013764).

  - CVE-2016-9907: The USB redirector usb-guest support was
    vulnerable to a memory leakage flaw when destroying the
    USB redirector in 'usbredir_handle_destroy'. A guest
    user/process could have used this issue to leak host
    memory, resulting in DoS for a host (bsc#1014109).

  - CVE-2016-9908: The Virtio GPU Device emulator support
    was vulnerable to an information leakage issue while
    processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command. A
    guest user/process could have used this flaw to leak
    contents of the host memory (bsc#1014514).

  - CVE-2016-9911: The USB EHCI Emulation support was
    vulnerable to a memory leakage issue while processing
    packet data in 'ehci_init_transfer'. A guest
    user/process could have used this issue to leak host
    memory, resulting in DoS for the host (bsc#1014111).

  - CVE-2016-9912: The Virtio GPU Device emulator support
    was vulnerable to a memory leakage issue while
    destroying gpu resource object in
    'virtio_gpu_resource_destroy'. A guest user/process
    could have used this flaw to leak host memory bytes,
    resulting in DoS for the host (bsc#1014112).

  - CVE-2016-9913: VirtFS was vulnerable to memory leakage
    issue via its '9p-handle' or '9p-proxy' backend drivers.
    A privileged user inside guest could have used this flaw
    to leak host memory, thus affecting other services on
    the host and/or potentially crash the Qemu process on
    the host (bsc#1014110).

The update package also includes non-security fixes. See advisory for
details.

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=1007454"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1008519"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1009109"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1013285"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1013341"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1013764"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1013767"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014109"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014110"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014111"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014112"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014256"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1014514"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1016779"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=937125"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9102/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9103/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9381/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9776/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9845/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9846/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9907/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9908/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9911/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9912/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9913/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9921/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-9922/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20170127-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3d1d0fff"
  );
  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 for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-68=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-68=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-68=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:L/AC:H/PR:H/UI:N/S:C/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:"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-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:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 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);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", 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-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-ssh-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-ssh-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-debugsource-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-guest-agent-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-guest-agent-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-lang-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-tools-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-tools-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-kvm-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-debugsource-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-kvm-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-debuginfo-2.6.2-39.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-39.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-12394E2CC7.NASL
    description - CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) - CVE-2016-7994: virtio-gpu: memory leak in resource_create_2d (bz #1382667) - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read (bz #1383286) - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs routines (bz #1383292) - CVE-2016-8668: OOB buffer access in rocker switch emulation (bz #1384898) - CVE-2016-8669: divide by zero error in serial_update_parameters (bz #1384911) - CVE-2016-8910: rtl8139: infinite loop while transmit in C+ mode (bz #1388047) - CVE-2016-8909: intel-hda: infinite loop in dma buffer stream (bz #1388053) - Infinite loop vulnerability in a9_gtimer_update (bz #1388300) - CVE-2016-9101: eepro100: memory leakage at device unplug (bz #1389539) - CVE-2016-9103: 9pfs: information leakage via xattr (bz #1389643) - CVE-2016-9102: 9pfs: memory leakage when creating extended attribute (bz #1389551) - CVE-2016-9104: 9pfs: integer overflow leading to OOB access (bz #1389687) - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz #1389704) - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz #1389713) - CVE-2016-9381: xen: incautious about shared ring processing (bz #1397385) - CVE-2016-9921: Divide by zero vulnerability in cirrus_do_copy (bz #1399054) - CVE-2016-9776: infinite loop while receiving data in mcf_fec_receive (bz #1400830) - CVE-2016-9845: information leakage in virgl_cmd_get_capset_info (bz #1402247) - CVE-2016-9846: virtio-gpu: memory leakage while updating cursor data (bz #1402258) - CVE-2016-9907: usbredir: memory leakage when destroying redirector (bz #1402266) - CVE-2016-9911: usb: ehci: memory leakage in ehci_init_transfer (bz #1402273) - CVE-2016-9913: 9pfs: memory leakage via proxy/handle callbacks (bz #1402277) - CVE-2016-10028: virtio-gpu-3d: OOB access while reading virgl capabilities (bz #1406368) - CVE-2016-9908: virtio-gpu: information leakage in virgl_cmd_get_capset (bz #1402263) - CVE-2016-9912: virtio-gpu: memory leakage when destroying gpu resource (bz #1402285) 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.
    last seen2020-06-05
    modified2017-01-26
    plugin id96782
    published2017-01-26
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96782
    titleFedora 24 : 2:qemu (2017-12394e2cc7)
    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 FEDORA-2017-12394e2cc7.
#

include("compat.inc");

if (description)
{
  script_id(96782);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-10028", "CVE-2016-6836", "CVE-2016-7909", "CVE-2016-7994", "CVE-2016-8577", "CVE-2016-8578", "CVE-2016-8668", "CVE-2016-8669", "CVE-2016-8909", "CVE-2016-8910", "CVE-2016-9101", "CVE-2016-9102", "CVE-2016-9103", "CVE-2016-9104", "CVE-2016-9105", "CVE-2016-9106", "CVE-2016-9381", "CVE-2016-9776", "CVE-2016-9845", "CVE-2016-9846", "CVE-2016-9907", "CVE-2016-9908", "CVE-2016-9911", "CVE-2016-9912", "CVE-2016-9913", "CVE-2016-9921");
  script_xref(name:"FEDORA", value:"2017-12394e2cc7");

  script_name(english:"Fedora 24 : 2:qemu (2017-12394e2cc7)");
  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:
"  - CVE-2016-6836: vmxnet: Information leakage in
    vmxnet3_complete_packet (bz #1366370)

  - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr
    (bz #1381196)

  - CVE-2016-7994: virtio-gpu: memory leak in
    resource_create_2d (bz #1382667)

  - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read
    (bz #1383286)

  - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs
    routines (bz #1383292)

  - CVE-2016-8668: OOB buffer access in rocker switch
    emulation (bz #1384898)

  - CVE-2016-8669: divide by zero error in
    serial_update_parameters (bz #1384911)

  - CVE-2016-8910: rtl8139: infinite loop while transmit in
    C+ mode (bz #1388047)

  - CVE-2016-8909: intel-hda: infinite loop in dma buffer
    stream (bz #1388053)

  - Infinite loop vulnerability in a9_gtimer_update (bz
    #1388300)

  - CVE-2016-9101: eepro100: memory leakage at device unplug
    (bz #1389539)

  - CVE-2016-9103: 9pfs: information leakage via xattr (bz
    #1389643)

  - CVE-2016-9102: 9pfs: memory leakage when creating
    extended attribute (bz #1389551)

  - CVE-2016-9104: 9pfs: integer overflow leading to OOB
    access (bz #1389687)

  - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz
    #1389704)

  - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz
    #1389713)

  - CVE-2016-9381: xen: incautious about shared ring
    processing (bz #1397385)

  - CVE-2016-9921: Divide by zero vulnerability in
    cirrus_do_copy (bz #1399054)

  - CVE-2016-9776: infinite loop while receiving data in
    mcf_fec_receive (bz #1400830)

  - CVE-2016-9845: information leakage in
    virgl_cmd_get_capset_info (bz #1402247)

  - CVE-2016-9846: virtio-gpu: memory leakage while updating
    cursor data (bz #1402258)

  - CVE-2016-9907: usbredir: memory leakage when destroying
    redirector (bz #1402266)

  - CVE-2016-9911: usb: ehci: memory leakage in
    ehci_init_transfer (bz #1402273)

  - CVE-2016-9913: 9pfs: memory leakage via proxy/handle
    callbacks (bz #1402277)

  - CVE-2016-10028: virtio-gpu-3d: OOB access while reading
    virgl capabilities (bz #1406368)

  - CVE-2016-9908: virtio-gpu: information leakage in
    virgl_cmd_get_capset (bz #1402263)

  - CVE-2016-9912: virtio-gpu: memory leakage when
    destroying gpu resource (bz #1402285)

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-2017-12394e2cc7"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected 2:qemu package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/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:24");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 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:"^24([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 24", "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:"FC24", reference:"qemu-2.6.2-6.fc24", 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");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-B953D4D3A4.NASL
    description - CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) - CVE-2016-7994: virtio-gpu: memory leak in resource_create_2d (bz #1382667) - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read (bz #1383286) - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs routines (bz #1383292) - CVE-2016-8668: OOB buffer access in rocker switch emulation (bz #1384898) - CVE-2016-8669: divide by zero error in serial_update_parameters (bz #1384911) - CVE-2016-8909: intel-hda: infinite loop in dma buffer stream (bz #1388053) - Infinite loop vulnerability in a9_gtimer_update (bz #1388300) - CVE-2016-9101: eepro100: memory leakage at device unplug (bz #1389539) - CVE-2016-9103: 9pfs: information leakage via xattr (bz #1389643) - CVE-2016-9102: 9pfs: memory leakage when creating extended attribute (bz #1389551) - CVE-2016-9104: 9pfs: integer overflow leading to OOB access (bz #1389687) - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz #1389704) - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz #1389713) - CVE-2016-9381: xen: incautious about shared ring processing (bz #1397385) - CVE-2016-9921: Divide by zero vulnerability in cirrus_do_copy (bz #1399054) - CVE-2016-9776: infinite loop while receiving data in mcf_fec_receive (bz #1400830) - CVE-2016-9845: information leakage in virgl_cmd_get_capset_info (bz #1402247) - CVE-2016-9846: virtio-gpu: memory leakage while updating cursor data (bz #1402258) - CVE-2016-9907: usbredir: memory leakage when destroying redirector (bz #1402266) - CVE-2016-9911: usb: ehci: memory leakage in ehci_init_transfer (bz #1402273) - CVE-2016-9913: 9pfs: memory leakage via proxy/handle callbacks (bz #1402277) - CVE-2016-10028: virtio-gpu-3d: OOB access while reading virgl capabilities (bz #1406368) - CVE-2016-9908: virtio-gpu: information leakage in virgl_cmd_get_capset (bz #1402263) - CVE-2016-9912: virtio-gpu: memory leakage when destroying gpu resource (bz #1402285) 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.
    last seen2020-06-05
    modified2017-01-23
    plugin id96677
    published2017-01-23
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96677
    titleFedora 25 : 2:qemu (2017-b953d4d3a4)
    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 FEDORA-2017-b953d4d3a4.
#

include("compat.inc");

if (description)
{
  script_id(96677);
  script_version("3.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-10028", "CVE-2016-6836", "CVE-2016-7909", "CVE-2016-7994", "CVE-2016-8577", "CVE-2016-8578", "CVE-2016-8668", "CVE-2016-8669", "CVE-2016-8909", "CVE-2016-9101", "CVE-2016-9102", "CVE-2016-9103", "CVE-2016-9104", "CVE-2016-9105", "CVE-2016-9106", "CVE-2016-9381", "CVE-2016-9776", "CVE-2016-9845", "CVE-2016-9846", "CVE-2016-9907", "CVE-2016-9908", "CVE-2016-9911", "CVE-2016-9912", "CVE-2016-9913", "CVE-2016-9921");
  script_xref(name:"FEDORA", value:"2017-b953d4d3a4");

  script_name(english:"Fedora 25 : 2:qemu (2017-b953d4d3a4)");
  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:
"  - CVE-2016-6836: vmxnet: Information leakage in
    vmxnet3_complete_packet (bz #1366370)

  - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr
    (bz #1381196)

  - CVE-2016-7994: virtio-gpu: memory leak in
    resource_create_2d (bz #1382667)

  - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read
    (bz #1383286)

  - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs
    routines (bz #1383292)

  - CVE-2016-8668: OOB buffer access in rocker switch
    emulation (bz #1384898)

  - CVE-2016-8669: divide by zero error in
    serial_update_parameters (bz #1384911)

  - CVE-2016-8909: intel-hda: infinite loop in dma buffer
    stream (bz #1388053)

  - Infinite loop vulnerability in a9_gtimer_update (bz
    #1388300)

  - CVE-2016-9101: eepro100: memory leakage at device unplug
    (bz #1389539)

  - CVE-2016-9103: 9pfs: information leakage via xattr (bz
    #1389643)

  - CVE-2016-9102: 9pfs: memory leakage when creating
    extended attribute (bz #1389551)

  - CVE-2016-9104: 9pfs: integer overflow leading to OOB
    access (bz #1389687)

  - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz
    #1389704)

  - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz
    #1389713)

  - CVE-2016-9381: xen: incautious about shared ring
    processing (bz #1397385)

  - CVE-2016-9921: Divide by zero vulnerability in
    cirrus_do_copy (bz #1399054)

  - CVE-2016-9776: infinite loop while receiving data in
    mcf_fec_receive (bz #1400830)

  - CVE-2016-9845: information leakage in
    virgl_cmd_get_capset_info (bz #1402247)

  - CVE-2016-9846: virtio-gpu: memory leakage while updating
    cursor data (bz #1402258)

  - CVE-2016-9907: usbredir: memory leakage when destroying
    redirector (bz #1402266)

  - CVE-2016-9911: usb: ehci: memory leakage in
    ehci_init_transfer (bz #1402273)

  - CVE-2016-9913: 9pfs: memory leakage via proxy/handle
    callbacks (bz #1402277)

  - CVE-2016-10028: virtio-gpu-3d: OOB access while reading
    virgl capabilities (bz #1406368)

  - CVE-2016-9908: virtio-gpu: information leakage in
    virgl_cmd_get_capset (bz #1402263)

  - CVE-2016-9912: virtio-gpu: memory leakage when
    destroying gpu resource (bz #1402285)

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-b953d4d3a4"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected 2:qemu package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/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:"2016/10/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/23");
  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-2.7.1-2.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");
}
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201701-49.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201701-49 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A privileged user/process within a guest QEMU environment can cause a Denial of Service condition against the QEMU guest process or the host. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id96684
    published2017-01-23
    reporterThis script is Copyright (C) 2017 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/96684
    titleGLSA-201701-49 : QEMU: Multiple vulnerabilities
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2017-116.NASL
    descriptionqemu was updated to fix several issues. These security issues were fixed : - CVE-2016-9102: Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number (bsc#1014256). - CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values writing to them (bsc#1007454). - CVE-2016-9381: Improper processing of shared rings allowing guest administrators take over the qemu process, elevating their privilege to that of the qemu process (bsc#1009109) - CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support was vulnerable to an infinite loop issue while receiving packets in
    last seen2020-06-05
    modified2017-01-19
    plugin id96623
    published2017-01-19
    reporterThis script is Copyright (C) 2017-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/96623
    titleopenSUSE Security Update : qemu (openSUSE-2017-116)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3261-1.NASL
    descriptionZhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029) Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-10155) Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet Controller. 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 16.04 LTS and Ubuntu 16.10. (CVE-2016-7907) It was discovered that QEMU incorrectly handled the JAZZ RC4030 device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8667) It was discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8669) It was discovered that QEMU incorrectly handled the shared rings when used with Xen. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. (CVE-2016-9381) Jann Horn discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to access files on the host file system outside of the shared directory and possibly escalate their privileges. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9602) Gerd Hoffmann discovered that QEMU incorrectly handled the Cirrus VGA device when being used with a VNC connection. A privileged attacker inside the guest 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. (CVE-2016-9603) It was discovered that QEMU incorrectly handled the ColdFire Fast Ethernet Controller. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9776) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9845, CVE-2016-9908) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9846, CVE-2016-9912, CVE-2017-5552, CVE-2017-5578, CVE-2017-5857) Li Qiang discovered that QEMU incorrectly handled the USB redirector. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9907) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9911) Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9913, CVE-2016-9914, CVE-2016-9915, CVE-2016-9916) Qinghao Tang, Li Qiang, and Jiangxin 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-2016-9921, CVE-2016-9922) Wjjzhang and Li Qiang 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, 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. (CVE-2017-2615) It was 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, 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. (CVE-2017-2620) It was discovered that QEMU incorrectly handled VNC connections. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-2633) Li Qiang discovered that QEMU incorrectly handled the ac97 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5525) Li Qiang discovered that QEMU incorrectly handled the es1370 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5526) Li Qiang discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5579) Jiang Xin discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest 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. (CVE-2017-5667) Li Qiang discovered that QEMU incorrectly handled the MegaRAID SAS device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5856) Li Qiang discovered that QEMU incorrectly handled the CCID Card device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5898) Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5973) Jiang Xin and Wjjzhang discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5987) Li Qiang discovered that QEMU incorrectly handled USB OHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-6505). 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 id99581
    published2017-04-21
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/99581
    titleUbuntu 14.04 LTS / 16.04 LTS / 16.10 : qemu vulnerabilities (USN-3261-1)

References