Advisories MDVSA-2010:085: pidgin

[paul]

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 '

'

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.