ClamAV 0.99.4 < 1.0.9, 1.2.0 < 1.4.3 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(241516);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/19");

  script_cve_id("CVE-2025-20234", "CVE-2025-20260");
  script_xref(name:"IAVB", value:"2025-B-0098");

  script_name(english:"ClamAV 0.99.4 < 1.0.9, 1.2.0 < 1.4.3 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The antivirus running on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version, the ClamAV clamd antivirus daemon running on the remote host is 0.99.4 prior to 1.0.9, 1.2.0
prior to 1.4.3. It is, therefore, affected by multiple vulnerabilities:

  - A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, 
    remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability 
    is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by 
    submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A 
    successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a
    DoS condition on the affected software. (CVE-2025-20234)

  - A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker 
    to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary 
    code on an affected device. This vulnerability exists because memory buffers are allocated incorrectly 
    when PDF files are processed. An attacker could exploit this vulnerability by submitting a crafted PDF 
    file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to 
    trigger a buffer overflow, likely resulting in the termination of the ClamAV scanning process and a DoS 
    condition on the affected software. Although unproven, there is also a possibility that an attacker could 
    leverage the buffer overflow to execute arbitrary code with the privileges of the ClamAV process. 
    (CVE-2025-20260)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://blog.clamav.net/2025/06/clamav-143-and-109-security-patch.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?88e9e146");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ClamAV version 1.0.9, 1.4.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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-2025-20260");
  script_set_attribute(attribute:"agent", value:"all");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/06/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/06/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/08");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:clamav:clamav");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("clamav_detect.nasl", "clamav_installed.nbin", "clamav_nix_installed.nbin");
  script_require_keys("installed_sw/ClamAV");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'ClamAV', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
          { 'min_version' : '0.99.4', 'fixed_version' : '1.0.9' },
          { 'min_version' : '1.2.0', 'fixed_version' : '1.4.3' }
      ]
    }
  ]
};

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