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TITLE:
Gaim URL Processing Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA15328

VERIFY ADVISORY:
http://secunia.com/advisories/15328/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Gaim 1.x
http://secunia.com/product/4107/

DESCRIPTION:
A vulnerability and a weakness have been reported in Gaim, which can
be exploited by malicious people to cause a DoS (Denial of Service)
or compromise a user's system.

1) A boundary error within the processing of messages containing URLs
can be exploited to cause a stack-based buffer overflow via a message
containing an overly long URL (more than 8192 bytes).

Successful exploitation allows execution of arbitrary code.

2) A NULL pointer dereference error within the handling of MSN
messages can be exploited to crash the application via a SLP message
with an empty body.

SOLUTION:
Update to version 1.3.0.
http://gaim.sourceforge.net/downloads.php

PROVIDED AND/OR DISCOVERED BY:
1) Stu Tomlinson
2) Siebe Tolsma

ORIGINAL ADVISORY:
Gaim:
http://gaim.sourceforge.net/security/index.php?id=16
http://gaim.sourceforge.net/security/index.php?id=17

Red Hat:
http://rhn.redhat.com/errata/RHSA-2005-429.html

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