Debian dsa-5880 : freetype2-demos - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-5880. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(232845);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/06");

  script_cve_id("CVE-2025-27363");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/05/27");

  script_name(english:"Debian dsa-5880 : freetype2-demos - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5880
advisory.

    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-5880-1                   [email protected]
    https://www.debian.org/security/                     Salvatore Bonaccorso
    March 17, 2025                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : freetype
    CVE ID         : CVE-2025-27363

    An out-of-bounds write vulnerability when attempting to parse font
    subglyph structures related to TrueType GX and variable font files was
    discovered in FreeType, which may result in the execution of arbitrary
    code when processing specially crafted fonts.

    For the stable distribution (bookworm), this problem has been fixed in
    version 2.12.1+dfsg-5+deb12u4.

    We recommend that you upgrade your freetype packages.

    For the detailed security status of freetype please refer to its
    security tracker page at:
    https://security-tracker.debian.org/tracker/freetype

    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/freetype");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-27363");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/freetype");
  script_set_attribute(attribute:"solution", value:
"Upgrade the freetype2-demos packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-27363");

  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:"2025/03/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freetype2-demos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freetype2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreetype-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreetype6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreetype6-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreetype6-udeb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/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);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '12.0', 'prefix': 'freetype2-demos', 'reference': '2.12.1+dfsg-5+deb12u4'},
    {'release': '12.0', 'prefix': 'freetype2-doc', 'reference': '2.12.1+dfsg-5+deb12u4'},
    {'release': '12.0', 'prefix': 'libfreetype-dev', 'reference': '2.12.1+dfsg-5+deb12u4'},
    {'release': '12.0', 'prefix': 'libfreetype6', 'reference': '2.12.1+dfsg-5+deb12u4'},
    {'release': '12.0', 'prefix': 'libfreetype6-dev', 'reference': '2.12.1+dfsg-5+deb12u4'},
    {'release': '12.0', 'prefix': 'libfreetype6-udeb', 'reference': '2.12.1+dfsg-5+deb12u4'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'freetype2-demos / freetype2-doc / libfreetype-dev / libfreetype6 / etc');
}