Vulnerabilities in BlackBerry Enterprise Server components that process images could allow remote code execution

From the blackberry site. I've posted an excerpt below:

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Overview

Vulnerabilities exist in components of the BlackBerry Enterprise Server that process PNG and TIFF images for rendering on the BlackBerry smartphone. The BlackBerry® Mobile Data System – Connection Service component processes images on web pages that the BlackBerry® Browser requests. The BlackBerry® Messaging Agent component processes images in email messages.

Affected Software

The issue affects the following software versions:

• BlackBerry® Enterprise Server version 5.0.1 through 5.0.3 MR2 for Microsoft Exchange
• BlackBerry® Enterprise Server version 5.0.1 through 5.0.3 MR2 for IBM Lotus Domino
• BlackBerry® Enterprise Server version 4.1.7 and version 5.0.1 through 5.0.1 MR3 for Novell GroupWise
• BlackBerry® Enterprise Server Express version 5.0.1 through 5.0.3 for Microsoft Exchange
• BlackBerry® Enterprise Server Express version 5.0.2 and 5.0.3 for IBM Lotus Domino

Note: BlackBerry Enterprise Server version 5.0.3 MR3 and later for Microsoft Exchange and IBM Lotus Domino are not affected.