Pidgin < 2.5.9 MSN SLP Packets 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:pidgin:pidgin";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.900920");
  script_version("2025-03-05T05:38:52+0000");
  script_tag(name:"last_modification", value:"2025-03-05 05:38:52 +0000 (Wed, 05 Mar 2025)");
  script_tag(name:"creation_date", value:"2009-08-26 14:01:08 +0200 (Wed, 26 Aug 2009)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cve_id("CVE-2009-2694");
  script_name("Pidgin < 2.5.9 MSN SLP Packets DoS Vulnerability - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("secpod_pidgin_detect_lin.nasl");
  script_mandatory_keys("Pidgin/Lin/Ver");

  script_xref(name:"URL", value:"http://secunia.com/advisories/36384");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36071");
  script_xref(name:"URL", value:"http://www.pidgin.im/news/security/?id=34");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/2303");

  script_tag(name:"impact", value:"Attackers can exploit this issue to execute arbitrary code, corrupt memory
  and cause the application to crash.");

  script_tag(name:"affected", value:"Pidgin version prior to 2.5.9 on Linux.");

  script_tag(name:"insight", value:"An error in the 'msn_slplink_process_msg()' function while processing
  malformed MSN SLP packets which can be exploited to overwrite an
  arbitrary memory location.");

  script_tag(name:"solution", value:"Update to version 2.5.9 or later.");

  script_tag(name:"summary", value:"Pidgin 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:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

if(!ver = get_app_version(cpe:CPE))
  exit(0);

if(version_is_less(version:ver, test_version:"2.5.9")) {
  report = report_fixed_ver(installed_version:ver, fixed_version:"2.5.9");
  security_message(data:report);
  exit(0);
}

exit(99);