Buffer overflow in ICQ before 2001B Beta v5.18 Build #3659 allows remote attackers to execute arbitrary code via a Voice Video & Games request.
https://exchange.xforce.ibmcloud.com/vulnerabilities/7743
http://www.securityfocus.com/bid/3813
http://www.kb.cert.org/vuls/id/570167
http://www.cert.org/advisories/CA-2002-02.html