gdiplus.dll in GDI+ in Microsoft Windows XP SP3 does not properly handle crafted .ico files, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a certain crash.ico file on a web site, and allows user-assisted attackers to cause a denial of service (divide-by-zero error and persistent application crash) via this crash.ico file on the desktop, a different vulnerability than CVE-2007-2237.