Ubuntu 14.04 LTS / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3033-1. 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(92312);
  script_version("2.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2015-8916",
    "CVE-2015-8917",
    "CVE-2015-8919",
    "CVE-2015-8920",
    "CVE-2015-8921",
    "CVE-2015-8922",
    "CVE-2015-8923",
    "CVE-2015-8924",
    "CVE-2015-8925",
    "CVE-2015-8926",
    "CVE-2015-8928",
    "CVE-2015-8930",
    "CVE-2015-8931",
    "CVE-2015-8932",
    "CVE-2015-8933",
    "CVE-2015-8934",
    "CVE-2016-4300",
    "CVE-2016-4302",
    "CVE-2016-4809",
    "CVE-2016-5844"
  );
  script_xref(name:"USN", value:"3033-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Hanno Bock discovered that libarchive contained multiple security
issues when processing certain malformed archive files. A remote
attacker could use this issue to cause libarchive to crash, resulting
in a denial of service, or possibly execute arbitrary code.
(CVE-2015-8916, CVE-2015-8917 CVE-2015-8919, CVE-2015-8920,
CVE-2015-8921, CVE-2015-8922, CVE-2015-8923, CVE-2015-8924,
CVE-2015-8925, CVE-2015-8926, CVE-2015-8928, CVE-2015-8930,
CVE-2015-8931, CVE-2015-8932, CVE-2015-8933, CVE-2015-8934,
CVE-2016-5844)

Marcin 'Icewall' Noga discovered that libarchive contained multiple
security issues when processing certain malformed archive files. A
remote attacker could use this issue to cause libarchive to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2016-4300, CVE-2016-4302)

It was discovered that libarchive incorrectly handled memory
allocation with large cpio symlinks. A remote attacker could use this
issue to possibly cause libarchive to crash, resulting in a denial of
service. (CVE-2016-4809).

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-3033-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-2016-4302");

  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:"2016/09/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libarchive13");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:bsdcpio");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:bsdtar");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libarchive-dev");
  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) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 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 || '16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', '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': 'bsdcpio', 'pkgver': '3.1.2-7ubuntu2.3'},
    {'osver': '14.04', 'pkgname': 'bsdtar', 'pkgver': '3.1.2-7ubuntu2.3'},
    {'osver': '14.04', 'pkgname': 'libarchive-dev', 'pkgver': '3.1.2-7ubuntu2.3'},
    {'osver': '14.04', 'pkgname': 'libarchive13', 'pkgver': '3.1.2-7ubuntu2.3'},
    {'osver': '16.04', 'pkgname': 'bsdcpio', 'pkgver': '3.1.2-11ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'bsdtar', 'pkgver': '3.1.2-11ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'libarchive-dev', 'pkgver': '3.1.2-11ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'libarchive13', 'pkgver': '3.1.2-11ubuntu0.16.04.2'}
];

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_WARNING,
    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, 'bsdcpio / bsdtar / libarchive-dev / libarchive13');
}