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TITLE:
Yahoo! Messenger Conference Invite Denial of Service

SECUNIA ADVISORY ID:
SA22510

VERIFY ADVISORY:
http://secunia.com/advisories/22510/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
>From remote

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

DESCRIPTION:
Gianni Amato has discovered a weakness in Yahoo! Messenger, which can
be exploited by malicious people to cause a DoS (Denial of Service).

The weakness is caused due to a NULL pointer dereference error when
processing received conference invites. This can be exploited to
crash arbitrary users' Yahoo! Messenger clients by sending a
Conference Invite packet containing a specially crafted "room name"
string.

The vulnerability is confirmed in version 8.0.0.716. Other versions
may also be affected.

SOLUTION:
Update to version 8.1.0.195 or later.

PROVIDED AND/OR DISCOVERED BY:
Gianni Amato

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About:
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