Stack-based buffer overflow in the LiveJournal support (hooks/ljhook.cc) in CenterICQ 4.9.11 through 4.21.0, when using unofficial LiveJournal servers, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by adding the victim as a friend and using long (1) username and (2) real name strings.
osvdb.org/33408
securityreason.com/securityalert/2129
securitytracker.com/id?1017545
www.gentoo.org/security/en/glsa/glsa-200701-20.xml
www.securityfocus.com/archive/1/456255/100/0/threaded
www.securityfocus.com/bid/21932
www.vupen.com/english/advisories/2007/0306
exchange.xforce.ibmcloud.com/vulnerabilities/31330