Debian dla-4704 : libraw-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-4704. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(330523);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/29");

  script_cve_id(
    "CVE-2026-5342",
    "CVE-2026-20884",
    "CVE-2026-20889",
    "CVE-2026-21413",
    "CVE-2026-24660"
  );
  script_xref(name:"IAVA", value:"2026-A-0298");

  script_name(english:"Debian dla-4704 : libraw-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 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4704 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4704-1                [email protected]
    https://www.debian.org/lts/security/                       Guilhem Moulin
    July 29, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libraw
    Version        : 0.20.2-1+deb11u3 0.20.2-2.1+deb12u2
    CVE ID         : CVE-2026-5342 CVE-2026-20884 CVE-2026-20889 CVE-2026-21413
                     CVE-2026-24660
    Debian Bug     : 1132655 1133845

    Multiple vulnerabilities were found in libraw, a raw image decoder
    library, which could lead to application crash, information disclosure
    or data corruption.

    CVE-2026-5342

        Biniam F. Demissie discovered an out-of-bounds read in the decoder
        routine for RAW image files from Nikon digital cameras.

    CVE-2026-20884

        Francesco Benvenuto discovered an integer overflow vulnerability
        in the decoder routine for deflate-compressed floating-point DNG
        RAW files, which may lead to heap buffer overflow via specially
        crafted input file.

    CVE-2026-20889

        Francesco Benvenuto discovered a heap-based buffer overflow
        vulnerability in the thumbnail extraction routine for RAW image
        files from Sigma/Foveon X3F digital cameras.

    CVE-2026-21413

        Francesco Benvenuto discovered a heap-based buffer overflow
        vulnerability in the lossless JPEG decoder used for processing
        compressed RAW data from various camera formats.

    CVE-2026-24660

        Francesco Benvenuto discovered a heap-based buffer overflow
        vulnerability in the Huffman decompression routine for RAW image
        files from Sigma/Foveon X3F digital cameras.

    For Debian 11 bullseye, these problems have been fixed in version
    0.20.2-1+deb11u3.

    For Debian 12 bookworm, these problems have been fixed in version
    0.20.2-2.1+deb12u2.

    We recommend that you upgrade your libraw packages.

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

    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
    Attachment:
    signature.asc
    Description: PGP signature

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/libraw");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-20884");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-20889");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-21413");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-24660");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-5342");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/libraw");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/libraw");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libraw-bin packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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: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:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-5342");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-24660");

  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:"2026/04/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libraw-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libraw-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libraw-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libraw20");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  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_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:"^(11)\.[0-9]+|^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0 / 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': '11.0', 'prefix': 'libraw-bin', 'reference': '0.20.2-1+deb11u3'},
    {'release': '11.0', 'prefix': 'libraw-dev', 'reference': '0.20.2-1+deb11u3'},
    {'release': '11.0', 'prefix': 'libraw-doc', 'reference': '0.20.2-1+deb11u3'},
    {'release': '11.0', 'prefix': 'libraw20', 'reference': '0.20.2-1+deb11u3'},
    {'release': '12.0', 'prefix': 'libraw-bin', 'reference': '0.20.2-2.1+deb12u2'},
    {'release': '12.0', 'prefix': 'libraw-dev', 'reference': '0.20.2-2.1+deb12u2'},
    {'release': '12.0', 'prefix': 'libraw-doc', 'reference': '0.20.2-2.1+deb12u2'},
    {'release': '12.0', 'prefix': 'libraw20', 'reference': '0.20.2-2.1+deb12u2'}
];

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_WARNING,
    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, 'libraw-bin / libraw-dev / libraw-doc / libraw20');
}