Ubuntu 14.04 LTS : GNU C Library vulnerabilities (USN-2306-1)

#%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-2306-1. 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(76999);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2013-4357",
    "CVE-2013-4458",
    "CVE-2014-0475",
    "CVE-2014-4043"
  );
  script_bugtraq_id(63299, 67992, 68505);
  script_xref(name:"USN", value:"2306-1");

  script_name(english:"Ubuntu 14.04 LTS : GNU C Library vulnerabilities (USN-2306-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Maksymilian Arciemowicz discovered that the GNU C Library incorrectly
handled the getaddrinfo() function. An attacker could use this issue
to cause a denial of service. This issue only affected Ubuntu 10.04
LTS. (CVE-2013-4357)

It was discovered that the GNU C Library incorrectly handled the
getaddrinfo() function. An attacker could use this issue to cause a
denial of service. This issue only affected Ubuntu 10.04 LTS and
Ubuntu 12.04 LTS. (CVE-2013-4458)

Stephane Chazelas discovered that the GNU C Library incorrectly
handled locale environment variables. An attacker could use this issue
to possibly bypass certain restrictions such as the ForceCommand
restrictions in OpenSSH. (CVE-2014-0475)

David Reid, Glyph Lefkowitz, and Alex Gaynor discovered that the GNU C
Library incorrectly handled posix_spawn_file_actions_addopen() path
arguments. An attacker could use this issue to cause a denial of
service. (CVE-2014-4043).

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://ubuntu.com/security/notices/USN-2306-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-4043");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2013-4357");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/05");

  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:"p-cpe:/a:canonical:ubuntu_linux:libc6-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-armel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-armel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-ppc64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-x32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-pic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-ppc64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-prof");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-x32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-dns-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libnss-files-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:multiarch-support");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:eglibc-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc-dev-bin");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2014-2023 Canonical, Inc. / NASL script (C) 2014-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04', 'Ubuntu ' + os_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 pkgs = [
    {'osver': '14.04', 'pkgname': 'eglibc-source', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc-bin', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc-dev-bin', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-amd64', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-armel', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev-amd64', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev-armel', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev-i386', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev-ppc64', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-dev-x32', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-i386', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-pic', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-ppc64', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-prof', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-udeb', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libc6-x32', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libnss-dns-udeb', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'libnss-files-udeb', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'multiarch-support', 'pkgver': '2.19-0ubuntu6.1'},
    {'osver': '14.04', 'pkgname': 'nscd', 'pkgver': '2.19-0ubuntu6.1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) 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, 'eglibc-source / libc-bin / libc-dev-bin / libc6 / libc6-amd64 / etc');
}