Ubuntu Security Notice USN-1359-1
13th February, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
Tomcat could be made to crash or expose sensitive information if it received specially crafted network traffic.
- tomcat6 - Servlet and JSP engine
It was discovered that Tomcat incorrectly performed certain caching and
recycling operations. A remote attacker could use this flaw to obtain read
access to IP address and HTTP header information in certain cases. This
issue only applied to Ubuntu 11.10. (CVE-2011-3375)
It was discovered that Tomcat computed hash values for form parameters
without restricting the ability to trigger hash collisions predictably.
A remote attacker could cause a denial of service by sending many crafted
It was discovered that Tomcat incorrectly handled parameters. A remote
attacker could cause a denial of service by sending requests with a large
number of parameters and values. (CVE-2012-0022)
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- libtomcat6-java 6.0.32-5ubuntu1.2
- Ubuntu 11.04:
- libtomcat6-java 6.0.28-10ubuntu2.3
- Ubuntu 10.10:
- libtomcat6-java 6.0.28-2ubuntu1.6
- Ubuntu 10.04 LTS:
- libtomcat6-java 6.0.24-2ubuntu1.10
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.