Pidgin < 2.6.2 Multiple DoS Vulnerabilities - 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("1.3.6.1.4.1.25623.1.0.900941");
  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:"2009-09-15 09:32:43 +0200 (Tue, 15 Sep 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-2009-2703", "CVE-2009-3083", "CVE-2009-3084",
                "CVE-2009-3085");
  script_name("Pidgin < 2.6.2 Multiple DoS Vulnerabilities - 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/36601");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36277");
  script_xref(name:"URL", value:"http://developer.pidgin.im/ticket/10159");
  script_xref(name:"URL", value:"http://www.pidgin.im/news/security/?id=37");
  script_xref(name:"URL", value:"http://www.pidgin.im/news/security/?id=38");
  script_xref(name:"URL", value:"http://www.pidgin.im/news/security/?id=39");
  script_xref(name:"URL", value:"http://www.pidgin.im/news/security/?id=40");

  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 2.6.2 on Linux.");

  script_tag(name:"insight", value:"- An error in libpurple/protocols/irc/msgs.c in the IRC protocol plugin in
  libpurple can trigger a NULL-pointer dereference when processing TOPIC
  messages which lack a topic string.

  - An error in the 'msn_slp_sip_recv' function in libpurple/protocols/msn/slp.c
  in the MSN protocol can trigger a NULL-pointer dereference via an SLP invite
  message missing expected fields.

  - An error in the 'msn_slp_process_msg' function in libpurple/protocols/msn/
  slpcall.c in the MSN protocol when converting the encoding of a handwritten
  message can be exploited by improper utilisation of uninitialised variables.

  - An error in the XMPP protocol plugin in libpurple is fails to handle an
  error IQ stanza during an attempted fetch of a custom smiley is processed
  via XHTML-IM content with cid: images.");

  script_tag(name:"solution", value:"Update to version 2.6.2 or later.");

  script_tag(name:"summary", value:"Pidgin is prone to multiple denial of service (DoS) vulnerabilities.");

  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:"2.6.2")) {
  report = report_fixed_ver(installed_version:ver, fixed_version:"2.6.2");
  security_message(data:report);
  exit(0);
}

exit(99);