KLA10664
Code execution vulnerability in Yahoo! Messenger

Buffer overflow vulnerability was found in Yahoo! Messenger. By exploiting this vulnerability malicious users can cause denial of service or execute arbitrary code. This vulnerability can be exploited remotely via a specially designed emoticons.xml file.

Technical details

Vulnerability caused by unrestricted emoticons parameters reading. This vulnerability can be exploited via changing content of emoticons.xml at title and shortcut elements. Changed emoticons file can be distributed via custom emoticons pack. At this moment vendor does not plan to release special patch for this vulnerability.

Yahoo! Messenger 11.5.0.228 and earlier

Try to update version as soon as vendor release patch. Before update avoid installation of untrusted emoticons packs or other actions involves changes in emoticons.xml file.