Python Library OpenEXR 3.4.0 < 3.4.13 DoS (CVE-2026-53532)

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

include('compat.inc');

if (description)
{
  script_id(341184);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/28");

  script_cve_id("CVE-2026-53532");
  script_xref(name:"IAVA", value:"2026-A-0904");

  script_name(english:"Python Library OpenEXR 3.4.0 < 3.4.13 DoS (CVE-2026-53532)");

  script_set_attribute(attribute:"synopsis", value:
"A Python library installed on the remote host is affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of the OpenEXR Python package installed on the remote host is 3.4.x prior to 3.4.13. It is, therefore,
affected by a denial of service vulnerability:

  - A crafted HTJ2K-compressed EXR file causes an unconditional process abort in any application that calls
    exr_start_read() on untrusted input. The crash is triggered by a QCD marker whose lower five bits are zero,
    which OpenEXR passes into the vendored OpenJPH library. OpenJPH uses an assertion rather than a recoverable
    error, so any invalid value calls abort() directly and cannot be intercepted by surrounding error handling.
    (CVE-2026-53532)

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/AcademySoftwareFoundation/openexr/security/advisories/GHSA-2f85-52wj-hc3c
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5fd73e51");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenEXR version 3.4.13 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-53532");

  script_cwe_id(617);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:academysoftwarefoundation:openexr");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("python_packages_installed_nix.nbin", "python_packages_win_installed.nbin");
  script_require_ports("Host/nix/Python/Packages/Enumerated", "Host/win/Python/Packages/Enumerated");

  exit(0);
}

include('python.inc');

var pkg = 'OpenEXR';

var libs = python::get_package_info(pkg_name:pkg, cpe:"cpe:/a:academysoftwarefoundation:openexr");

if (empty_or_null(libs))
  audit(AUDIT_NOT_INST, pkg);

vcf::check_all_backporting(app_info:libs);

var constraints = [
  {'min_version': '3.4.0', 'fixed_version': '3.4.13'}
];

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