Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 : libvirt vulnerabilities (USN-1954-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1954-1. 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(69972);
  script_version("1.10");
  script_cvs_date("Date: 2019/09/19 12:54:29");

  script_cve_id("CVE-2013-4296", "CVE-2013-4311", "CVE-2013-5651");
  script_bugtraq_id(62508, 62509, 62510);
  script_xref(name:"USN", value:"1954-1");

  script_name(english:"Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 : libvirt vulnerabilities (USN-1954-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that libvirt used the pkcheck tool in an unsafe
manner. A local attacker could possibly use this flaw to bypass polkit
authentication. In Ubuntu, libvirt polkit authentication is not
enabled by default. (CVE-2013-4311)

It was discovered that libvirt incorrectly handled certain memory
stats requests. A remote attacker could use this issue to cause
libvirt to crash, resulting in a denial of service. This issue only
affected Ubuntu 12.04 LTS, Ubuntu 12.10, and Ubuntu 13.04.
(CVE-2013-4296)

It was discovered that libvirt incorrectly handled certain bitmap
operations. A remote attacker could use this issue to cause libvirt to
crash, resulting in a denial of service. This issue only affected
Ubuntu 13.04. (CVE-2013-5651).

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/1954-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libvirt-bin and / or libvirt0 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:libvirt-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  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:13.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 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:"^(10\.04|12\.04|12\.10|13\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 12.04 / 12.10 / 13.04", "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:"10.04", pkgname:"libvirt-bin", pkgver:"0.7.5-5ubuntu27.24")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt0", pkgver:"0.7.5-5ubuntu27.24")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libvirt-bin", pkgver:"0.9.8-2ubuntu17.13")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libvirt0", pkgver:"0.9.8-2ubuntu17.13")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"libvirt-bin", pkgver:"0.9.13-0ubuntu12.5")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"libvirt0", pkgver:"0.9.13-0ubuntu12.5")) flag++;
if (ubuntu_check(osver:"13.04", pkgname:"libvirt-bin", pkgver:"1.0.2-0ubuntu11.13.04.4")) flag++;
if (ubuntu_check(osver:"13.04", pkgname:"libvirt0", pkgver:"1.0.2-0ubuntu11.13.04.4")) 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, "libvirt-bin / libvirt0");
}