ImageMagick < 6.9.13-32 / 7.0 < 7.1.2-7 Integer Overflow (GGHSA-9pp9-cfwx-54rm)

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

include('compat.inc');

if (description)
{
  script_id(276810);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/03");

  script_cve_id("CVE-2025-62171");

  script_name(english:"ImageMagick < 6.9.13-32 / 7.0 < 7.1.2-7 Integer Overflow (GGHSA-9pp9-cfwx-54rm)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by integer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host has a version of ImageMagick installed that is prior to 6.9.13-32, 7.0 prior to 7.1.2-7. It is, 
therefore, affected by integer overflow vulnerability as referenced in GGHSA-9pp9-cfwx-54rm advisory.

  - ImageMagick is an open source software suite for displaying, converting, and editing raster image files. 
    In ImageMagick versions prior to 7.1.2-7 and 6.9.13-32, an integer overflow vulnerability exists in the 
    BMP decoder on 32-bit systems. The vulnerability occurs in coders/bmp.c when calculating the extent 
    value by multiplying image columns by bits per pixel. On 32-bit systems with size_t of 4 bytes, a 
    malicious BMP file with specific dimensions can cause this multiplication to overflow and wrap to zero. 
    The overflow check added to address CVE-2025-57803 is placed after the overflow occurs, making it 
    ineffective. A specially crafted 58-byte BMP file with width set to 536,870,912 and 32 bits per pixel can 
    trigger this overflow, causing the bytes_per_line calculation to become zero. This vulnerability only 
    affects 32-bit builds of ImageMagick where default resource limits for width, height, and area have been 
    manually increased beyond their defaults. 64-bit systems with size_t of 8 bytes are not vulnerable.
    (CVE-2025-62171)

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/ImageMagick/ImageMagick/security/advisories/GHSA-9pp9-cfwx-54rm
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5889c6af");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ImageMagick version 6.9.13-32, 7.1.2-7 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-62171");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/10/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/10/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:imagemagick:imagemagick");
  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_nix_installed.nbin");
  script_require_keys("installed_sw/ImageMagick");

  exit(0);
}

include('vcf.inc');
include('http.inc');

if ('linux' >!< tolower(get_kb_item('Host/uname')))
  audit(AUDIT_OS_NOT, 'Linux');

var cpu = get_kb_item("Host/cpu");

if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / i386, this vulnerability affects only 32 bit systems", cpu);

var app_info = vcf::get_app_info(app:'ImageMagick');

var constraints = [
  { 'min_version' : '6.0.0.0', 'max_version' : '6.9.13.30', 'fixed_display' : '6.9.13-32' },
  { 'min_version' : '7.0.0.0', 'max_version' : '7.1.2.5', 'fixed_display' : '7.1.2-7' }
];

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