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("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/28");

  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:
"The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in
the USN-2306-1 advisory.

    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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  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) 2014-2024 Canonical, Inc. / NASL script (C) 2014-2024 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 var 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)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : extra
  );
  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');
}