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TITLE:
MSN Messenger Video Conversation Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA26570

VERIFY ADVISORY:
http://secunia.com/advisories/26570/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Microsoft MSN Messenger 7.x
http://secunia.com/product/5907/
Microsoft MSN Messenger 6.x
http://secunia.com/product/1902/

DESCRIPTION:
wushi has reported a vulnerability in MSN Messenger, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error in the handling of video
conversations and can be exploited to cause a heap-based buffer
overflow via specially crafted data sent to a user.

Successful exploitation may allow execution of arbitrary code, but
requires that the victim accepts the incoming Web Cam invitation.

The vulnerability is reported in version 7.x. Other versions may also
be affected.

SOLUTION:
No fix is available for 7.x versions and prior. Users are encouraged
to upgrade to Windows Live Messenger 8.1 or later, which is not
affected by the vulnerability.

Do not accept untrusted Web Cam sessions.

PROVIDED AND/OR DISCOVERED BY:
wushi

ORIGINAL ADVISORY:
http://www.team509.com/modules.php?name=News&file=article&sid=50

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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.

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


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