CVE 2009-1098
Buffer overflow in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 5.0 Update 17 and earlier; 6 Update 12 and earlier; 1.4.2_19 and earlier; and 1.3.1_24 and earlier allows remote attackers to access files or execute arbitrary code via a crafted GIF image, aka CR 6804998.
See the 
CVE page on Mitre.org
for more details.
