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TITLE:
uTorrent "created by" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA31441

VERIFY ADVISORY:
http://secunia.com/advisories/31441/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
uTorrent 1.x
http://secunia.com/product/13466/

DESCRIPTION:
A vulnerability has been discovered in uTorrent, which potentially
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the processing
of ".torrent" files. This can be exploited to cause a stack-based
buffer overflow by tricking the user into opening a ".torrent" file
containing an overly long "created by" field.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in version 1.7.7 (build 8179). Prior
versions may also be affected.

SOLUTION:
Update to version 1.8.0.

PROVIDED AND/OR DISCOVERED BY:
Reported as a vulnerability by Rhys Kidd.

Silently patched by the vendor in version 1.8 RC7.

ORIGINAL ADVISORY:
Rhys Kidd:
http://seclists.org/dailydave/2008/q3/0155.html

uTorrent:
http://forum.utorrent.com/viewtopic.php?id=44003

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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