Debian dla-4179 : libavif-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-4179. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(237269);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/18");

  script_cve_id("CVE-2025-48174", "CVE-2025-48175");
  script_xref(name:"IAVA", value:"2025-A-0523");

  script_name(english:"Debian dla-4179 : libavif-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 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4179 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4179-1                [email protected]
    https://www.debian.org/lts/security/             Carlos Henrique Lima Melara
    May 26, 2025                                  https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libavif
    Version        : 0.8.4-2+deb11u2
    CVE ID         : CVE-2025-48174 CVE-2025-48175
    Debian Bug     : 1105883 1105885

    Multiple vulnerabilities were found in libavif, a library for handling .avif
    files.

    CVE-2025-48174

        In libavif before 1.3.0, makeRoom in stream.c has an integer overflow and
        resultant buffer overflow in stream->offset+size.

    CVE-2025-48175

        In libavif before 1.3.0, avifImageRGBToYUV in reformat.c has integer
        overflows in multiplications involving rgbRowBytes, yRowBytes, uRowBytes,
        and vRowBytes.

    For Debian 11 bullseye, these problems have been fixed in version
    0.8.4-2+deb11u2.

    We recommend that you upgrade your libavif packages.

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

    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/libavif");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48174");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48175");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/libavif");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libavif-bin packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-48175");

  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:"2025/05/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/05/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavif-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavif-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavif-gdk-pixbuf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libavif9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', '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': 'libavif-bin', 'reference': '0.8.4-2+deb11u2'},
    {'release': '11.0', 'prefix': 'libavif-dev', 'reference': '0.8.4-2+deb11u2'},
    {'release': '11.0', 'prefix': 'libavif-gdk-pixbuf', 'reference': '0.8.4-2+deb11u2'},
    {'release': '11.0', 'prefix': 'libavif9', 'reference': '0.8.4-2+deb11u2'}
];

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_NOTE,
    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, 'libavif-bin / libavif-dev / libavif-gdk-pixbuf / libavif9');
}