ClamAV < 0.94 LZH File Unpacking DoS Vulnerability - Linux

# SPDX-FileCopyrightText: 2009 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:clamav:clamav";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.800597");
  script_version("2023-10-12T05:05:32+0000");
  script_tag(name:"last_modification", value:"2023-10-12 05:05:32 +0000 (Thu, 12 Oct 2023)");
  script_tag(name:"creation_date", value:"2009-07-07 11:58:41 +0200 (Tue, 07 Jul 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2008-6845");
  script_name("ClamAV < 0.94 LZH File Unpacking DoS Vulnerability - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_clamav_ssh_login_detect.nasl", "gb_clamav_remote_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("clamav/detected", "Host/runs_unixoide");

  script_xref(name:"URL", value:"http://www.ivizsecurity.com/security-advisory-iviz-sr-08011.html");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/32752");

  script_tag(name:"summary", value:"ClamAV is prone to a denial of service (DoS) vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"A segmentation fault occurs in the unpack feature, while
  processing malicious LZH file.");

  script_tag(name:"impact", value:"Attackers can exploit this issue to execute arbitrary code in the
  context of affected application, and can cause denial of service.");

  script_tag(name:"affected", value:"ClamAV 0.93.3 and prior.");

  script_tag(name:"solution", value:"Update to version 0.94 or later.");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( port:port, cpe:CPE, exit_no_version:TRUE ) )
  exit( 0 );

vers = infos["version"];
path = infos["location"];

if( version_is_less_equal( version:vers, test_version:"0.93.3" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"0.94", install_path:path );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );