[ MDVSA-2010:085 ] pidgin

[dude67]

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Package : pidgin
Date : April 28, 2010
Affected: 2009.0
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Problem Description:

Security vulnerabilities has been identified and fixed in pidgin:

The OSCAR protocol plugin in libpurple in Pidgin before 2.6.3 and Adium
before 1.3.7 allows remote attackers to cause a denial of service
(application crash) via crafted contact-list data for (1) ICQ and
possibly (2) AIM, as demonstrated by the SIM IM client (CVE-2009-3615).

Directory traversal vulnerability in slp.c in the MSN protocol
plugin in libpurple in Pidgin 2.6.4 and Adium 1.3.8 allows
remote attackers to read arbitrary files via a .. (dot dot) in an
application/x-msnmsgrp2p MSN emoticon (aka custom smiley) request,
a related issue to CVE-2004-0122. NOTE: it could be argued that
this is resultant from a vulnerability in which an emoticon download
request is processed even without a preceding text/x-mms-emoticon
message that announced availability of the emoticon (CVE-2010-0013).

Directory traversal vulnerability in slp.c in the MSN protocol
plugin in libpurple in Pidgin 2.6.4 and Adium 1.3.8 allows
remote attackers to read arbitrary files via a .. (dot dot) in an
application/x-msnmsgrp2p MSN emoticon (aka custom smiley) request,
a related issue to CVE-2004-0122. NOTE: it could be argued that
this is resultant from a vulnerability in which an emoticon download
request is processed even without a preceding text/x-mms-emoticon
message that announced availability of the emoticon (CVE-2010-0013).

Certain malformed SLP messages can trigger a crash because the MSN
protocol plugin fails to check that all pieces of the message are
set correctly (CVE-2010-0277).

In a user in a multi-user chat room has a nickname containing '<br>'
then libpurple ends up having two users with username ' ' in the room,
and Finch crashes in this situation. We do not believe there is a
possibility of remote code execution (CVE-2010-0420).

oCERT notified us about a problem in Pidgin, where a large amount of
processing time will be used when inserting many smileys into an IM
or chat window. This should not cause a crash, but Pidgin can become
unusable slow (CVE-2010-0423).

Packages for 2009.0 are provided due to the Extended Maintenance
Program.

This update provides pidgin 2.6.6, which is not vulnerable to these
issues.
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References:

http://cve.mitre.org/cgi-bin/cvename.cg ... -2009-3615
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0013
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0013
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0277
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0420
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0423
http://pidgin.im/news/security/
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