GIF file validation error in MSN Messenger 6.2 allows remote attackers in a user's contact list to execute arbitrary code via a GIF image with an improper height and width.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4927
https://exchange.xforce.ibmcloud.com/vulnerabilities/19950
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-022
http://www.us-cert.gov/cas/techalerts/TA05-102A.html