Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS : eglibc vulnerability (USN-2328-1)

2014-08-29T00:00:00
ID UBUNTU_USN-2328-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-24T00:00:00

Description

Tavis Ormandy and John Haxby discovered that the GNU C Library contained an off-by-one error when performing transliteration module loading. A local attacker could exploit this to gain administrative privileges. (CVE-2014-5119)

USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04 LTS and Ubuntu 12.04 LTS the security update for CVE-2014-0475 caused a regression with localplt on PowerPC. This update fixes the problem. We apologize for the inconvenience.

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-2328-1. 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(77436);
  script_version("$Revision: 1.9 $");
  script_cvs_date("$Date: 2016/05/24 17:29:04 $");

  script_cve_id("CVE-2014-0475", "CVE-2014-5119");
  script_bugtraq_id(68983);
  script_osvdb_id(109188);
  script_xref(name:"USN", value:"2328-1");

  script_name(english:"Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS : eglibc vulnerability (USN-2328-1)");
  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:
"Tavis Ormandy and John Haxby discovered that the GNU C Library
contained an off-by-one error when performing transliteration module
loading. A local attacker could exploit this to gain administrative
privileges. (CVE-2014-5119)

USN-2306-1 fixed vulnerabilities in the GNU C Library. On Ubuntu 10.04
LTS and Ubuntu 12.04 LTS the security update for CVE-2014-0475 caused
a regression with localplt on PowerPC. This update fixes the problem.
We apologize for the inconvenience.

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:"solution", value:"Update the affected libc6 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:ND");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6");
  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:14.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2014-2016 Canonical, Inc. / NASL script (C) 2014-2016 Tenable Network Security, Inc.");
  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 (! ereg(pattern:"^(10\.04|12\.04|14\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 12.04 / 14.04", "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:"libc6", pkgver:"2.11.1-0ubuntu7.16")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libc6", pkgver:"2.15-0ubuntu10.7")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"libc6", pkgver:"2.19-0ubuntu6.3")) 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, "libc6");
}