QuickTime Streaming Server in MacOS X 10.2.8 and 10.3.2 allows remote attackers to cause a denial of service (crash) via DESCRIBE requests with long User-Agent fields, which causes an Assert error to be triggered in the BufferIsFull function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15291
http://www.securityfocus.com/bid/9735
http://www.kb.cert.org/vuls/id/460350
http://www.idefense.com/application/poi/display?id=75&type=vulnerabilities
http://lists.apple.com/archives/security-announce/2004/Feb/msg00000.html