Home Page | Skip to Navigation | Skip to Content | Skip to Search | Skip to Footer

Sourcefire Snort Packet Fragmentation Reassembly Denial of Service (CVE-2007-1398)

Subscribe

Check Point Reference: CPAI-2012-007
Date Published:
Severity:
Source:
Industry Reference(s): CVE-2007-1398
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Adobe Reader X (10.1.1) and earlier 10.x versions for Windows and Macintosh
Adobe Reader 9.4.6 and earlier 9.x versions for Windows, Macintosh and UNIX
Adobe Acrobat X (10.1.1) and earlier 10.x versions for Windows and Macintosh
Adobe Acrobat 9.4.6 and earlier 9.x versions for Windows and Macintosh
Vulnerability Description
A denial of service vulnerability has been reported in Sourcefire Snort.
Vulnerability Details
The vulnerability is due to an error in Snort Intrusion Detection System when it reassembles fragmented packets. A remote attacker may exploit this vulnerability by sending malicious packets over UDP to an affected service. Successful exploitation could cause the service to become unresponsive, resulting in a denial of service condition.

Protection Overview
This protection will detect and block attempts to transfer malicious packets over UDP.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?
1. In the IPS tab, click Protections and find the Sourcefire Snort Packet Fragmentation Reassembly Denial of Service protection using the Search tool and Edit the protection's settings.
2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Application Servers Protection Violation
Attack Information: Sourcefire Snort packet fragmentation reassembly denial of service