ImageMagick < 6.9.13-34 / 7.x < 7.1.2-9 Use-After-Free / Double-Free (GHSA-q3hc-j9x5-mp9m)

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

include('compat.inc');

if (description)
{
  script_id(277548);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/26");

  script_cve_id("CVE-2025-65955");
  script_xref(name:"IAVB", value:"2025-B-0196-S");

  script_name(english:"ImageMagick < 6.9.13-34 / 7.x < 7.1.2-9 Use-After-Free / Double-Free (GHSA-q3hc-j9x5-mp9m)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by use-after-free and double-free vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host has a version of ImageMagick installed that is prior to 6.9.13-34 or 7.1.2-9. It is, 
therefore, affected by use-after-free and double-free vulnerabilities as referenced in the 
GHSA-q3hc-j9x5-mp9m advisory.

  - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior
    to 7.1.2-9 and 6.9.13-34, there is a vulnerability in ImageMagick's Magick++ layer that manifests
    when Options::fontFamily is invoked with an empty string. Clearing a font family calls
    RelinquishMagickMemory on _drawInfo->font, freeing the font string but leaving _drawInfo->font
    pointing to freed memory while _drawInfo->family is set to that (now-invalid) pointer. Any later
    cleanup or reuse of _drawInfo->font re-frees or dereferences dangling memory. DestroyDrawInfo and
    other setters (Options::font, Image::font) assume _drawInfo->font remains valid, so destruction or
    subsequent updates trigger crashes or heap corruption. This vulnerability is fixed in 7.1.2-9 and
    6.9.13-34. (CVE-2025-65955)

Note that Nessus has not tested for this issue but has instead relied only on the application's 
self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?31b27b42");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ImageMagick version 7.1.2-9 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-65955");

  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:"2025/12/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/12/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:imagemagick:imagemagick");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("imagemagick_installed.nasl", "imagemagick_macos_installed.nbin");
  script_require_keys("installed_sw/ImageMagick");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match_one': {'os': ['windows', 'macos']}}
  ],
  'checks': [
    {
      'check_algorithm': 'default',
      'product': {'name': 'ImageMagick', 'type': 'app'},
      'constraints': [
          { 'min_version' : '7.0.0', 'fixed_version' : '7.1.2.9', 'fixed_display' : '7.1.2-9' },
          { 'min_version' : '6.0.0', 'fixed_version' : '6.9.13.34', 'fixed_display' : '6.9.13-34' }
      ]
    }
  ]
};

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