ImageMagick < 6.9.13-56 / 7.x < 7.1.2-31 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(362654);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/02");

  script_cve_id(
    "CVE-2026-93586",
    "CVE-2026-93587",
    "CVE-2026-93588",
    "CVE-2026-93589"
  );

  script_name(english:"ImageMagick < 6.9.13-56 / 7.x < 7.1.2-31 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host has a version of ImageMagick installed that is prior to 6.9.13-56, or 7.x prior to 7.1.2-31. It is,
therefore, affected by multiple vulnerabilities:

  - ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a NULL pointer dereference in the PNM coder. When
    the coder reaches a memory (resource) limit at a specific point during processing, the failed allocation is
    not handled and a NULL pointer is dereferenced, which can lead to a denial of service (application crash)
    when processing a specially crafted or sufficiently large PNM image. (CVE-2026-93588)

  - ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a use-after-free vulnerability in the ImagesToBlob
    method, caused by a pointer that is not updated correctly. Exploitation may result in a limited availability
    impact (e.g., a crash of the affected process). (CVE-2026-93586)

  - ImageMagick before 7.1.2-31 and 6.9.13-56 contains a division-by-zero flaw in the FLIF encoder. An incorrect
    value for ticks per second in the image being encoded causes a divide-by-zero and crashes the encoder,
    resulting in a denial of service. (CVE-2026-93589)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-3rjr-534c-8v67
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e626012a");
  # https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-89wq-f8f6-2j2v
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2ace806f");
  # https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-92rw-c5mw-27v4
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?48c8a907");
  # https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4gg2-hfgh-6f5c
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6478f49e");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ImageMagick version 6.9.13-56 / 7.1.2-31 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-93588");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-93589");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:imagemagick:imagemagick");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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("imagemagick_installed.nasl", "imagemagick_macos_installed.nbin", "imagemagick_nix_installed.nbin");
  script_require_keys("installed_sw/ImageMagick");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'check_algorithm': 'default',
      'product': {'name': 'ImageMagick', 'type': 'app'},
      'constraints': [
        { 'fixed_version' : '6.9.13.56', 'fixed_display' : '6.9.13-56' },
        { 'min_version' : '7.0.0', 'fixed_version' : '7.1.2.31', 'fixed_display' : '7.1.2-31' }
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);