Debian dla-4869 : libvlc-bin - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4869. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(373845);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/11/02");

  script_cve_id("CVE-2026-56711", "CVE-2026-73324", "CVE-2026-102875");

  script_name(english:"Debian dla-4869 : libvlc-bin - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4869 advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4869-1                [email protected]
    https://www.debian.org/lts/security/                        Simon Quigley
    October 29, 2026                              https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : vlc
    Version        : 3.0.24-0+deb12u1
    CVE ID         : CVE-2026-56711 CVE-2026-73324 CVE-2026-102875

    Multiple vulnerabilities were discovered in the VLC media player, which
    could result in the execution of arbitrary code or denial of service if
    a malformed media file is opened.

    For Debian 12 bookworm, these problems have been fixed in version
    3.0.24-0+deb12u1.

    We recommend that you upgrade your vlc packages.

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

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

Tenable has extracted the preceding description block directly from the Debian 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://security-tracker.debian.org/tracker/source-package/vlc");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-102875");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-56711");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-73324");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/vlc");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libvlc-bin packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-102875");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvlc-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvlc-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvlc5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvlccore-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libvlccore9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-l10n");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-access-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-fluidsynth");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-jack");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-notify");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-qt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-skins2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-svg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-video-output");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-video-splitter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vlc-plugin-visualization");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.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': 'libvlc-bin', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'libvlc-dev', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'libvlc5', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'libvlccore-dev', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'libvlccore9', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-bin', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-data', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-l10n', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-access-extra', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-base', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-fluidsynth', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-jack', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-notify', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-qt', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-samba', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-skins2', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-svg', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-video-output', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-video-splitter', 'reference': '3.0.24-0+deb12u1'},
    {'release': '12.0', 'prefix': 'vlc-plugin-visualization', 'reference': '3.0.24-0+deb12u1'}
];

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, 'libvlc-bin / libvlc-dev / libvlc5 / libvlccore-dev / libvlccore9 / vlc / etc');
}