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TITLE:
uTorrent "announce" Option Buffer Overflow

SECUNIA ADVISORY ID:
SA24130

VERIFY ADVISORY:
http://secunia.com/advisories/24130/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

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

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

The vulnerability is caused due to a boundary error when processing
".torrent" files and can be exploited to cause a stack-based buffer
overflow via a specially crafted ".torrent" file with an overly long
(greater than 4800 bytes) "announce" option. 

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 1.6 build 474. Other
versions may also be affected.

SOLUTION:
Do not open untrusted .torrent files.

PROVIDED AND/OR DISCOVERED BY:
defsec

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/3296

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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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