VRT Advisories


VRT Rules 2009-03-27

Sourcefire VRT Rules Update

Date: 2009-03-27

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Internet Explorer and Mozilla Firefox.

Details:

Microsoft Windows GDI Buffer Overflow: A programming error in the Microsoft Windows kernel may allow a remote attacker to execute code with system level privileges. This may be exploited when specially crafted EMF files are viewed using Microsoft Internet Explorer.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15430.

Mozilla Firefox XSL Buffer Overflow: A programming error in Mozilla Firefox may allow a remote attacker to execute code on a victim machine. The error is exposed when the application attempts to process an XML file that has a specially crafted XSLT transform.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15431.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.