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Gaim contains a buffer overflow vulnerability in the yahoo_decode() function

Vulnerability Note VU#655974

Original Release Date: 2004-04-30 | Last Revised: 2004-05-06

Overview

There is a buffer overflow vulnerability in the Gaim yahoo_decode() function, which could cause a pointer to reference memory beyond the terminating null byte.

Description

Gaim is a multi-protocol instant messenger available for a number of operating systems. It supports a variety of instant messaging protocols, including the Yahoo Messenger (YMSG) protocol. There is a buffer overflow vulnerability in the yahoo_decode() function. This function fails to properly allocate memory for octal values, which could result in a pointer referencing a memory location beyond the terminating null byte.

Impact

An unauthenticated, remote attacker may cause a denial of service or potentially execute code of the attacker's choice.

Solution

Upgrade

Upgrade to Gaim version 0.76 or later.

Apply a patch
The maintainers of Gaim have supplied a patch to address this vulnerability.

Vendor Information

655974
 

Gaim Affected

Updated:  April 30, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

This vulnerability has been addressed in versions 0.76 and later. A patch is also available to address this issue.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


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References

Acknowledgements

This vulnerability was publicly reported by Stefan Esser of e-matters.

This document was written by Damon Morda.

Other Information

CVE IDs: CVE-2004-0005
Severity Metric: 7.88
Date Public: 2004-01-26
Date First Published: 2004-04-30
Date Last Updated: 2004-05-06 18:20 UTC
Document Revision: 17

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