Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which allows remote attackers to cause a denial of service (OutOfMemoryError) via a crafted request.
Tomcat has provided a fix to address this security vulnerability CVE-2011-0534. The fix jars have been built for WebSphere Application Server Community Edition version 18.104.22.168 as recommended by tomcat.
The following JAR contains the patch for the Tomcat catalina library v6.0.29 which is used by WebSphere Application Server Community Edition v22.214.171.124. The fixed JAR can be replaced in WebSphere Application Server Community Edition v126.96.36.199 installations.
- Stop the server if it is running and replace the JAR as specified below:
- Backup the existing one and replace with the new fix JAR from the following directory of the WebSphere Application Server Community Edition v188.8.131.52 installation: