<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200901-13"> <title>Pidgin: Multiple vulnerabilities</title> <synopsis> Multiple vulnerabilities have been discovered in Pidgin, allowing for remote arbitrary code execution, Denial of Service and service spoofing. </synopsis> <product type="ebuild">pidgin</product> <announced>2009-01-20</announced> <revised count="01">2009-01-20</revised> <bug>230045</bug> <bug>234135</bug> <access>remote</access> <affected> <package name="net-im/pidgin" auto="yes" arch="*"> <unaffected range="ge">2.5.1</unaffected> <vulnerable range="lt">2.5.1</vulnerable> </package> </affected> <background> <p> Pidgin (formerly Gaim) is an instant messaging client for a variety of instant messaging protocols. It is based on the libpurple instant messaging library. </p> </background> <description> <p> Multiple vulnerabilities have been discovered in Pidgin and the libpurple library: </p> <ul><li> A participant to the TippingPoint ZDI reported multiple integer overflows in the msn_slplink_process_msg() function in the MSN protocol implementation (CVE-2008-2927). </li> <li> Juan Pablo Lopez Yacubian is credited for reporting a use-after-free flaw in msn_slplink_process_msg() in the MSN protocol implementation (CVE-2008-2955). </li> <li> The included UPnP server does not limit the size of data to be downloaded for UPnP service discovery, according to a report by Andrew Hunt and Christian Grothoff (CVE-2008-2957). </li> <li> Josh Triplett discovered that the NSS plugin for libpurple does not properly verify SSL certificates (CVE-2008-3532). </li> </ul> </description> <impact type="normal"> <p> A remote attacker could send specially crafted messages or files using the MSN protocol which could result in the execution of arbitrary code or crash Pidgin. NOTE: Successful exploitation might require the victim's interaction. Furthermore, an attacker could conduct man-in-the-middle attacks to obtain sensitive information using bad certificates and cause memory and disk resources to exhaust. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All Pidgin users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-im/pidgin-2.5.1"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2927">CVE-2008-2927</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2955">CVE-2008-2955</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2957">CVE-2008-2957</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3532">CVE-2008-3532</uri> </references> <metadata tag="requester" timestamp="2008-07-06T18:20:14Z"> p-y </metadata> <metadata tag="submitter" timestamp="2008-11-29T14:01:14Z"> a3li </metadata> <metadata tag="bugReady" timestamp="2008-12-02T14:32:53Z"> rbu </metadata> </glsa>