Ubuntu 14.04 LTS : libmspack vulnerabilities (USN-7788-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-7788-1. 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(266398);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/02");

  script_cve_id(
    "CVE-2015-4467",
    "CVE-2015-4468",
    "CVE-2015-4469",
    "CVE-2015-4472",
    "CVE-2017-6419",
    "CVE-2017-11423",
    "CVE-2018-14679",
    "CVE-2018-14680",
    "CVE-2018-14681",
    "CVE-2018-14682",
    "CVE-2018-18585",
    "CVE-2019-1010305"
  );
  script_xref(name:"USN", value:"7788-1");

  script_name(english:"Ubuntu 14.04 LTS : libmspack vulnerabilities (USN-7788-1)");

  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-7788-1 advisory.

    Jakub Wilk discovered that libmspack did not correctly handle certain integer operations and bounds
    checking. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-4467,
    CVE-2015-4468, CVE-2015-4469, CVE-2015-4472)

    It was discovered that libmspack incorrectly handled certain malformed CAB files. A remote attacker could
    use this issue to cause libmspack to crash, resulting in a denial of service. (CVE-2017-11423)

    It was discovered that libmspack incorrectly handled certain malformed CHM files. A remote attacker could
    use this issue to cause libmspack to crash, resulting in a denial of service, or possibly execute
    arbitrary code. (CVE-2017-6419)

    Hanno Bck discovered that libmspack incorrectly handled certain CHM files. An attacker could possibly
    use this issue to cause a denial of service. (CVE-2018-14679, CVE-2018-14680)

    Jakub Wilk discovered that libmspack incorrectly handled certain KWAJ files. An attacker could possibly
    use this issue to execute arbitrary code. (CVE-2018-14681)

    Dmitry Glavatskikh discovered that libmspack incorrectly handled certain CHM files. An attacker could
    possibly use this issue to execute arbitrary code. (CVE-2018-14682)

    It was discovered libmspack incorrectly handled certain malformed CAB files. A remote attacker could use
    this issue to cause libmspack to crash, resulting in a denial of service. (CVE-2018-18585)

    It was discovered that libmspack incorrectly handled certain CHM files. A remote attacker could possibly
    use this issue to access sensitive information. (CVE-2019-1010305)

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-7788-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected libmspack-dev and / or libmspack0 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:N/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-2018-14682");

  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:"2015/01/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/10/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:libmspack-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmspack0");
  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) 2025 Canonical, Inc. / NASL script (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "ubuntu_pro_sub_detect.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 ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
ubuntu_pro_detected = !empty_or_null(ubuntu_pro_detected);

var pro_caveat_needed = FALSE;

var pkgs = [
    {'osver': '14.04', 'pkgname': 'libmspack-dev', 'pkgver': '0.4-1ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '14.04', 'pkgname': 'libmspack0', 'pkgver': '0.4-1ubuntu0.1~esm2', 'ubuntu_pro': TRUE}
];

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 (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  var pro_required = NULL;
  if (!empty_or_null(package_array['ubuntu_pro'])) pro_required = package_array['ubuntu_pro'];
  if (osver && pkgname && pkgver) {
    if (deb_check(release:osver, prefix:pkgname, reference:pkgver, cves:cves)) {
        flag++;
        if (!ubuntu_pro_detected && !pro_caveat_needed) pro_caveat_needed = pro_required;
    }
  }
}

if (flag)
{
  var extra = '';
  if (pro_caveat_needed) {
    extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
    extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
    extra += 'require an Ubuntu Pro subscription.\n\n';
  }
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, 'libmspack-dev / libmspack0');
}