Trailrunner7 writes "A vulnerability exists in some components of BlackBerry mobile devices that could grant attackers access to instances of the company's Enterprise Server (BES), according to BlackBerry, which issued an alert and released a patch for the vulnerability last week via its Knowledge Base support site. BES, the software implicated by the vulnerability, helps companies deploy BlackBerry devices. The high severity advisory involves the way the phone views Tagged Image File Format (TIFF) files, specifically the way the phone's Mobile Data System Connection Service and Messaging Agent processes and renders the images. An attacker could rig a TIFF image with malware and get a user to either view the image via a specially crafted website or send it to the user via email or instant message. The last two exploit vectors could make it so the user wouldn't have to click the link or image, or view the email or instant message, for the attack to prove successful. Once executed, an attacker could access and execute code on Blackberry's Enterprise Server."