An error was found in Ruby’s CGI library that did not correctly check for the end of multipart MIME requests. Using a crafted HTTP request, a remote user could cause a denial of service, where Ruby CGI applications would end up in a loop, monopolizing a CPU.
The problem can be corrected by updating your system to the following package versions:
1 November 2006
A security issue affects these releases of Ubuntu and its derivatives:
An error was found in Ruby’s CGI library that did not correctly check for the end of multipart MIME requests. Using a crafted HTTP request, a remote user could cause a denial of service, where Ruby CGI applications would end up in a loop, monopolizing a CPU.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the necessary changes.
Vulmon