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Effectively enabling you to focus your attention on software
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TITLE:
Yahoo! Messenger Webcam JPEG 2000 Processing Buffer Overflow

SECUNIA ADVISORY ID:
SA26501

VERIFY ADVISORY:
http://secunia.com/advisories/26501/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Yahoo! Messenger 8.x
http://secunia.com/product/12122/

DESCRIPTION:
A vulnerability has been reported in Yahoo! Messenger, which
potentially can be exploited by malicious people to cause a DoS
(Denial of Service) or compromise a user's system.

The vulnerability is caused due to an input validation error when
processing JPEG 2000 streams sent via the webcam stream. This can be
exploited to cause a heap-based buffer overflow when a user e.g. is
tricked into viewing  a malicious webcam stream.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in version 8.1.0.413. Other versions
may also be affected.

SOLUTION:
Do not accept untrusted webcam invites.

PROVIDED AND/OR DISCOVERED BY:
team509

ORIGINAL ADVISORY:
https://www.xfocus.net/bbs/index.php?act=ST&f=2&t=64639&page=1#entry321749

OTHER REFERENCES:
US-CERT VU#515968:
http://www.kb.cert.org/vuls/id/515968

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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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