Full Disclosure mailing list archives

Re: Yahoo! Messenger Service 18 Remote Buffer Overflow Vulnerability


From: <cdejrhymeswithgay () hush com>
Date: Thu, 26 Oct 2006 09:23:28 -0500

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On Wed, 25 Oct 2006 04:30:18 -0500 Gadi Evron <ge () linuxbox org>
wrote:

Does anyone have more information on this issue?


Yes. SecuriTeam is currently assisting a researcher with reporting

this
issue to Yahoo! security.

Yahoo! security responded in record time, as they often do, and
are
working to resolve this potential security vulnerability.

An official report with full credit to the researcher who
discovered it
will be released when the incident has been resolved.

A similar vulnerability was reported on the mailing lists a few
months
ago, which has not been fixed. SecuriTeam assisted the researcher
and
Yahoo! responded and fixed the issue in a matter of a day. Yahoo!
are very
capable with security vulnerabilities in their software.

Thanks,

      Gadi.

----snip----
http://www.securityfocus.com/bid/20625/discuss
Yahoo! Messenger is prone to a remote buffer-overflow
vulnerability
because it fails to properly bounds-check user-supplied data
before
copying it to an insufficiently sized memory buffer.

This vulnerability allows remote attackers to execute arbitrary
machine
code in the context of the affected application. Failed exploit
attempts
will likely crash the server, denying further service to
legitimate
users.

Yahoo! Messenger 8 with Voice is vulnerable.
----snip----


I could not find this vulnerability reported on any other place
than
bugtraq (say Secunia, iDefense, ISC).


Thanks,

- Siddhartha



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So how fast is this "record time?" As fast as Hitler's Blitzkrieg
tactics? That's pretty fast!
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