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nessusUbuntu Security Notice (C) 2017-2023 Canonical, Inc. / NASL script (C) 2017-2023 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-3268-1.NASL
HistoryApr 26, 2017 - 12:00 a.m.

Ubuntu 17.04 : qemu vulnerabilities (USN-3268-1)

2017-04-2600:00:00
Ubuntu Security Notice (C) 2017-2023 Canonical, Inc. / NASL script (C) 2017-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
48
qemu
ubuntu
vulnerability
denial of service
privilege escalation
cve-2016-10028
cve-2016-8667
cve-2016-9602
cve-2016-9603
cve-2016-9908
cve-2016-9912
cve-2017-5552
cve-2017-5578
cve-2016-9914
cve-2017-5987
cve-2017-6505
tenable network security

CVSS2

9

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

59.2%

Zhenhao 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. (CVE-2016-10028)

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)

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)

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. (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. (CVE-2016-9912, CVE-2017-5552, CVE-2017-5578)

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-2016-9914)

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3268-1. 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(99686);
  script_version("3.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/12");

  script_cve_id("CVE-2016-10028", "CVE-2016-8667", "CVE-2016-9602", "CVE-2016-9603", "CVE-2016-9908", "CVE-2016-9912", "CVE-2016-9914", "CVE-2017-5552", "CVE-2017-5578", "CVE-2017-5987", "CVE-2017-6505");
  script_xref(name:"USN", value:"3268-1");

  script_name(english:"Ubuntu 17.04 : qemu vulnerabilities (USN-3268-1)");
  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:
"Zhenhao 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. (CVE-2016-10028)

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)

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)

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. (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. (CVE-2016-9912,
CVE-2017-5552, CVE-2017-5578)

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-2016-9914)

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."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3268-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected 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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/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: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:17.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2017-2023 Canonical, Inc. / NASL script (C) 2017-2023 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");
var release = chomp(release);
if (! preg(pattern:"^(17\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 17.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var flag = 0;

if (ubuntu_check(osver:"17.04", pkgname:"qemu-system", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-aarch64", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-arm", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-mips", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-misc", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-ppc", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-s390x", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-sparc", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"qemu-system-x86", pkgver:"1:2.8+dfsg-3ubuntu2.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var 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");
}

CVSS2

9

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

59.2%