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Yahoo! Messenger Filename Buffer Overflow Vulnerability
Secunia Advisory: SA10573
Release Date: 2004-01-08
Popularity: 11,361 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Yahoo! Messenger 5.x

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Description:
Tri Huynh has reported a vulnerability in Yahoo! Messenger, allowing malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when handling the filename parameter. An overly long, maliciously crafted filename causes a buffer overflow, which potentially allows execution of arbitrary code with the privileges of the current user.

The vulnerability has been reported in version 5.6.0.1351 and prior.

Solution:
The vendor has reportedly fixed the vulnerability silently in version 5.6.0.1358.

NOTE: It is necessary to manually delete any old version and install version 5.6.0.1358, because no update function is available.

Provided and/or discovered by:
Tri Huynh, SentryUnion.


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