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Pidgin MSN SLP Message Integer Overflow Vulnerabilities
Secunia Advisory: SA30971
Release Date: 2008-07-09
Last Update: 2008-08-29
Popularity: 2,038 views

Critical:
Moderately critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Pidgin 2.x

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CVE reference:CVE-2008-2927


Description:
Some vulnerabilities have been reported in Pidgin, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to integer overflow errors in the "msn_slplink_process_msg" function in libpurple/protocols/msnp9/slplink.c and libpurple/protocols/msn/slplink.c, and can potentially be exploited to execute arbitrary code via a specially crafted SLP message.

Successful exploitation requires that the attacker is allowed to send messages to a victim (by default only users in the buddy list)

The vulnerability is reported in versions prior to 2.4.3.

Solution:
Update to version 2.4.3.

Provided and/or discovered by:
Discovered by an anonymous person, reported via ZDI.

Disclosed in a Red Hat bug report.

Changelog:
2008-08-29: Updated "Provided and/or discovered by" section. Added link to ZDI and Pidgin advisories.

Original Advisory:
ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-08-054/

Pidgin:
http://www.pidgin.im/news/security/?id=25

Red Hat:
https://bugzilla.redhat.com/show_bug.cgi?id=453764


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