Ubuntu 12.04 LTS / 12.10 / 13.10 : qemu, qemu-kvm vulnerabilities (USN-2092-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2092-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(72231);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2013-4344", "CVE-2013-4375", "CVE-2013-4377");
  script_bugtraq_id(62682, 62773, 62934);
  script_xref(name:"USN", value:"2092-1");

  script_name(english:"Ubuntu 12.04 LTS / 12.10 / 13.10 : qemu, qemu-kvm vulnerabilities (USN-2092-1)");
  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:
"Asias He discovered that QEMU incorrectly handled SCSI controllers
with more than 256 attached devices. A local user could possibly use
this flaw to elevate privileges. (CVE-2013-4344)

It was discovered that QEMU incorrectly handled Xen disks. A local
guest could possibly use this flaw to consume resources, resulting in
a denial of service. This issue only affected Ubuntu 12.10 and Ubuntu
13.10. (CVE-2013-4375)

Sibiao Luo discovered that QEMU incorrectly handled device
hot-unplugging. A local user could possibly use this flaw to cause a
denial of service. This issue only affected Ubuntu 13.10.
(CVE-2013-4377).

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/2092-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-kvm");
  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-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-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:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:13.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/10/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2014-2020 Canonical, Inc. / NASL script (C) 2014-2019 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:"^(12\.04|12\.10|13\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 12.10 / 13.10", "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:"12.04", pkgname:"qemu-kvm", pkgver:"1.0+noroms-0ubuntu14.13")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"qemu-kvm", pkgver:"1.2.0+noroms-0ubuntu2.12.10.6")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-arm", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-mips", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-misc", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-ppc", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-sparc", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;
if (ubuntu_check(osver:"13.10", pkgname:"qemu-system-x86", pkgver:"1.5.0+dfsg-3ubuntu5.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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-kvm / qemu-system / qemu-system-arm / qemu-system-mips / etc");
}