Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : freetype vulnerabilities (USN-1267-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1267-1. 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(56870);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-3256", "CVE-2011-3439");
  script_bugtraq_id(50155, 50643);
  script_xref(name:"USN", value:"1267-1");

  script_name(english:"Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : freetype vulnerabilities (USN-1267-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that FreeType did not correctly handle certain
malformed Type 1 font files. If a user were tricked into using a
specially crafted font file, a remote attacker could cause FreeType to
crash or possibly execute arbitrary code with user privileges.
(CVE-2011-3256)

It was discovered that FreeType did not correctly handle certain
malformed CID-keyed PostScript font files. If a user were tricked into
using a specially crafted font file, a remote attacker could cause
FreeType to crash or possibly execute arbitrary code with user
privileges. (CVE-2011-3439).

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/1267-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libfreetype6 package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:libfreetype6");
  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:10.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/11/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/18");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 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:"^(8\.04|10\.04|10\.10|11\.04|11\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.04 / 10.04 / 10.10 / 11.04 / 11.10", "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:"8.04", pkgname:"libfreetype6", pkgver:"2.3.5-1ubuntu4.8.04.7")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libfreetype6", pkgver:"2.3.11-1ubuntu2.5")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libfreetype6", pkgver:"2.4.2-2ubuntu0.3")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libfreetype6", pkgver:"2.4.4-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libfreetype6", pkgver:"2.4.4-2ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "libfreetype6");
}