Ubuntu Security Notice USN-273-1
24th April, 2006
ruby1.8 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.10
- Ubuntu 5.04
- Ubuntu 4.10
Details
Yukihiro Matsumoto reported that Ruby's HTTP module uses blocking
sockets. By sending large amounts of data to a server application that
uses this module, a remote attacker could exploit this to render this
application unusable and not respond any more to other clients (Denial
of Service).
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.10:
- libwebrick-ruby1.8
- libruby1.8
- Ubuntu 5.04:
- libwebrick-ruby1.8
- libruby1.8
- Ubuntu 4.10:
- libwebrick-ruby1.8
- libruby1.8
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
None