Overview
There is a buffer overflow vulnerability in the way the Gaim yahoo_login_page_hash() function parses the "name" parameter in the Yahoo login webpage.
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_login_page_hash() function of Gaim's YMSG protocol. When parsing the Yahoo login webpage, the yahoo_login_page_hash() function fails to perform adequate bounds checking on the value of the "name" parameter. Although the source of this value should originate from a site controlled by Yahoo, an attacker may use several techniques (DNS spoofing, man-in-the-middle, etc.) to modify the values returned to the victim. |
Impact
An attacker with the ability to control the "name" parameter returned to the victim could execute arbitrary code with the privileges of the vulnerable process. |
Solution
Upgrade Upgrade to Gaim version 0.76 or later. |
Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
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-2004-0006 |
| Severity Metric: | 6.56 |
| Date Public: | 2004-01-26 |
| Date First Published: | 2004-05-06 |
| Date Last Updated: | 2004-05-06 19:46 UTC |
| Document Revision: | 15 |