Fortinet Security Advisory: FSA-2006-03 Apple QuickTime Player ImageWidth Denial of Service Vulnerability Advisory Date : January 12, 2006 Reported Date : November 28, 2005 Vendor : Apple computers Affected Products : Apple QuickTime Player v7.0.3 Severity : Medium Reference : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3710 http://docs.info.apple.com/article.html?artnum=303101 http://www.securityfocus.com/bid/16202/info Description : Fortinet Security Research Team (FSRT) has discovered a Denial of Service Vulnerability in the Apple QuickTime Player. Apple QuickTime has Denial of Service vulnerability in parsing the specially crafted TIFF image files. This is due to application failure to sanitize the parameter ImageWidth value while parsing TIFF image files. A remote attacker could construct a web page with specially crafted tiff file and entice a victim to view it, when the user opens the TIFF image with Internet Explorer or Apple QuickTime Player, it'll cause memory access violation, and leading to Denial of Service. Impact : Denial of Service Solution : Apple Computers has released a security update for this vulnerability, which is available for downloading from Apples's web site under security update. Fortinet Protection: Fortinet is protecting network from this vulnerability with latest IPS update. Acknowledgment : Dejun Meng of Fortinet Security Research team found this vulnerability.