Libheif 1.22.x < 1.23.2 Heap Buffer Overflow (macOS)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(346898);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/17");

  script_cve_id("CVE-2026-84383");

  script_name(english:"Libheif 1.22.x < 1.23.2 Heap Buffer Overflow (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"Libheif running on the remote host is affected by a heap buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, libheif on the remote host is 1.22.0 or later and prior to 1.23.2. It is,
therefore, affected by a heap buffer overflow vulnerability. A crafted HEIC/HEIF/AVIF file using nested identity
derivation (iden) and auxiliary (auxl) item references causes HeifPixelImage::scale_nearest_neighbor() to write 16-bit
samples into an 8-bit Alpha plane allocation, resulting in an out-of-bounds heap write whose size and contents are
attacker controlled. Any application calling heif_decode_image() is affected, with no special API options required.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/strukturag/libheif/security/advisories/GHSA-g89c-p67h-r497
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cd97c8a0");
  script_set_attribute(attribute:"solution", value:
"Upgrade to libheif version 1.23.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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_attribute(attribute:"cvss_score_source", value:"CVE-2026-84383");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:struktur:libheif");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("libheif_macos_installed.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "installed_sw/libheif");

  exit(0);
}

include('vcf.inc');

vcf::add_separator('_');
var app_info = vcf::get_app_info(app:'libheif');

var constraints = [
  { 'min_version' : '1.22.0', 'fixed_version' : '1.23.2' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);