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Sourcefire Vulnerability Research Team Protects Users from Latest Microsoft Windows Vulnerabilities
Reading, UK – April 9, 2008 – Open source innovator and SNORT® creator, Sourcefire, Inc. (Nasdaq: FIRE), a leader in Enterprise Threat Management, today announced that the Sourcefire Vulnerability Research Team (VRT) has delivered rules to protect Sourcefire customers and Snort users from Microsoft vulnerabilities announced today. These vulnerabilities impact Microsoft Windows, Internet Explorer and Microsoft Office.

“This week at the annual RSA conference a lot of companies are talking about protecting against vulnerabilities, but relatively few actually provide end-users with the tools to proactively protect their assets,” said Matt Watchinski, Director of the Sourcefire Vulnerability Research Team. “Sourcefire is dedicated to not only providing our customers with immediate protection against known vulnerabilities, but also providing them with the technology to safeguard their most critical assets and information against even unknown threats that may be currently targeting their environment.”

Following Microsoft’s disclosure earlier today, the Sourcefire VRT created, tested and delivered Snort rules designed to detect attacks targeting the Microsoft vulnerabilities listed below. These new rules are included in the latest Sourcefire Security Enhancement Update (SEU) released today.

- Microsoft Security Bulletin MS08-021 – Critical vulnerabilities in GDI could allow remote code execution if a user opens a specially crafted EMF or WMF image file. An attacker who successfully exploited these vulnerabilities could take complete control of an affected system.

- Microsoft Security Bulletin MS08-022 – A critical vulnerability in the VBScript and JScript scripting engines in Windows could allow an attacker who successfully exploited it to take complete control of an affected system.

- Microsoft Security Bulletin MS08-023 – A critical vulnerability in Yahoo! Music Jukebox could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer.

- Microsoft Security Bulletin MS08-020 – An important vulnerability in Windows DNS clients could allow an attacker to send specially crafted responses to DNS requests, thereby spoofing or redirecting Internet traffic from legitimate locations.

- Microsoft Security Bulletin MS08-019 – An important vulnerability in Microsoft Office Visio could allow remote code execution if a user opens a specially crafted Visio file. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

About the Sourcefire 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 activities, 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.

About Sourcefire Sourcefire, Inc. (Nasdaq: FIRE), Snort creator and open source innovator, is a world leader in Enterprise Threat Management (ETM) solutions. Sourcefire is transforming the way Global 2000 organizations and government agencies manage and minimize network security risks with its 3D Approach – Discover, Determine, Defend – to securing real networks. The Sourcefire 3D™ System is the first to unify IPS, NBA, NAC and Vulnerability Assessment technologies under the same management console. This ETM approach equips customers with an efficient and effective layered security defense – protecting network assets before, during and after an attack.

Through the years, Sourcefire has been consistently recognized for its innovation and industry leadership by customers, media and industry analysts alike – with more than 30 awards and accolades. Today, the names Sourcefire and founder Martin Roesch have grown synonymous with innovation and network security intelligence. For more information about Sourcefire, please visit http://www.sourcefire.com.

SOURCEFIRE®, SNORT®, the Sourcefire logo, the Snort and Pig logo, SECURITY FOR THE REAL WORLD™, SOURCEFIRE DEFENSE CENTER™, SOURCEFIRE 3D™, RNA™, DAEMONLOGGER™, CLAMAV™, SOURCEFIRE SOLUTIONS NETWORK™, and certain other trademarks and logos are trademarks or registered trademarks of Sourcefire, Inc. in the United States and other countries. Other company, product and service names may be trademarks or service marks of others.

For further information:

Paula Elliott
C8 Consulting Ltd for Data Encryption Systems Ltd
Tel: +44 (0) 7894 339645 / +44 (0) 118 9001132
Email: paula@c8consulting.co.uk

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