Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : libXpm vulnerabilities (USN-5807-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5807-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(170110);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/16");

  script_cve_id("CVE-2022-4883", "CVE-2022-44617", "CVE-2022-46285");
  script_xref(name:"USN", value:"5807-1");

  script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : libXpm vulnerabilities (USN-5807-1)");

  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 18.04 LTS / 20.04 LTS / 22.04 LTS / 22.10 host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-5807-1 advisory.

  - A flaw was found in libXpm. When processing files with .Z or .gz extensions, the library calls external
    programs to compress and uncompress files, relying on the PATH environment variable to find these
    programs, which could allow a malicious user to execute other programs by manipulating the PATH
    environment variable. (CVE-2022-4883)

  - A flaw was found in libXpm. When processing a file with width of 0 and a very large height, some parser
    functions will be called repeatedly and can lead to an infinite loop, resulting in a Denial of Service in
    the application linked to the library. (CVE-2022-44617)

  - A flaw was found in libXpm. This issue occurs when parsing a file with a comment not closed; the end-of-
    file condition will not be detected, leading to an infinite loop and resulting in a Denial of Service in
    the application linked to the library. (CVE-2022-46285)

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-5807-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected libxpm-dev, libxpm4 and / or xpmutils packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  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:L/UI:N/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-2022-4883");

  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:"2023/01/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libxpm-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libxpm4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xpmutils");
  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) 2023 Canonical, Inc. / NASL script (C) 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 (! ('18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04 / 22.04', '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': '18.04', 'pkgname': 'libxpm-dev', 'pkgver': '1:3.5.12-1ubuntu0.18.04.2'},
    {'osver': '18.04', 'pkgname': 'libxpm4', 'pkgver': '1:3.5.12-1ubuntu0.18.04.2'},
    {'osver': '18.04', 'pkgname': 'xpmutils', 'pkgver': '1:3.5.12-1ubuntu0.18.04.2'},
    {'osver': '20.04', 'pkgname': 'libxpm-dev', 'pkgver': '1:3.5.12-1ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'libxpm4', 'pkgver': '1:3.5.12-1ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'xpmutils', 'pkgver': '1:3.5.12-1ubuntu0.20.04.1'},
    {'osver': '22.04', 'pkgname': 'libxpm-dev', 'pkgver': '1:3.5.12-1ubuntu0.22.04.1'},
    {'osver': '22.04', 'pkgname': 'libxpm4', 'pkgver': '1:3.5.12-1ubuntu0.22.04.1'},
    {'osver': '22.04', 'pkgname': 'xpmutils', 'pkgver': '1:3.5.12-1ubuntu0.22.04.1'}
];

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, 'libxpm-dev / libxpm4 / xpmutils');
}