Integer overflow in Opera 8.54 and earlier allows remote attackers to execute arbitrary code via a JPEG image with large height and width values, which causes less memory to be allocated than intended.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-3195
http://www.vupen.com/english/advisories/2006/2491
http://www.vigilantminds.com/advi_detail.php?id=45
http://www.securityfocus.com/bid/18594
http://www.securityfocus.com/archive/1/438074/100/0/threaded
http://www.novell.com/linux/security/advisories/2006_38_opera.html
http://securitytracker.com/id?1016362