VRT Advisories


VRT Rules 2008-01-10

Sourcefire VRT Rules Update

Date: 2008-01-10

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Samba, Skype and Apple QuickTime.

Details:

Samba Buffer Overflow (CVE-2007-6015):
A stack based buffer overflow condition is present in nmbd in certain versions of Samba. A remote attacker may be able to execute code on an affected system via a GETDC mailslot request.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 13291.

Skype Technologies Heap Corruption (CVE-2007-5989):
A programming error in the Skype URI handler may allow a remote attacker to cause memory corruption which may lead to code execution.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 13292.

Apple QuickTime Buffer Overflow (CVE-2007-4675):
Apple QuickTime does not perform adequate checks on user supplied data in QuickTime Virtual Reality movie files. A remote attacker may use this flaw to cause a buffer overflow and execute code on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 13293.

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.