Pidgin Yahoo Protocol 'YMSG' NULL Pointer Dereference Denial of Service Vulnerability (Windows)

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_pidgin_ymsg_dos_vuln_win.nasl 7024 2017-08-30 11:51:43Z teissa $
#
# Pidgin Yahoo Protocol 'YMSG' NULL Pointer Dereference Denial of Service Vulnerability (Windows)
#
# Authors:
# Madhuri D <[email protected]>
#
# Copyright:
# Copyright (c) 2011 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_impact = "Successful exploitation will allow attacker to crash the affected
  application, denying service to legitimate users.
  Impact Level: Application";
tag_affected = "Pidgin version prior 2.6.0 through 2.7.10 on Windows";
tag_insight = "The flaw is due to a NULL pointer dereference error when processing
  certain YMSG packets, which can be exploited to crash the process by sending
  specially crafted YMSG packets.";
tag_solution = "Upgrade to Pidgin version 2.7.11 or later
  http://pidgin.im/download";
tag_summary = "This host has installed with Pidgin and is prone to Denial of
  Service vulnerability.";

if(description)
{
  script_id(801764);
  script_version("$Revision: 7024 $");
  script_tag(name:"last_modification", value:"$Date: 2017-08-30 13:51:43 +0200 (Wed, 30 Aug 2017) $");
  script_tag(name:"creation_date", value:"2011-03-22 08:43:18 +0100 (Tue, 22 Mar 2011)");
  script_cve_id("CVE-2011-1091");
  script_bugtraq_id(46837);
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_name("Pidgin Yahoo Protocol 'YMSG' NULL Pointer Dereference Denial of Service Vulnerability (Windows)");
  script_xref(name : "URL" , value : "http://secunia.com/advisories/43695");
  script_xref(name : "URL" , value : "http://www.pidgin.im/news/security/?id=51");
  script_xref(name : "URL" , value : "http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2011 Greenbone Networks GmbH");
  script_family("Denial of Service");
  script_dependencies("secpod_pidgin_detect_win.nasl");
  script_require_keys("Pidgin/Win/Ver");
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name:"qod_type", value:"registry");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("version_func.inc");

pidginVer = get_kb_item("Pidgin/Win/Ver");
if(pidginVer != NULL)
{
  if(version_in_range(version:pidginVer, test_version:"2.6.0", test_version2:"2.7.10")){
    security_message(0);
  }
}