Ubuntu Security Notice USN-1841-1
28th May, 2013
tomcat6, tomcat7 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Several security issues were fixed in Tomcat.
- tomcat6 - Servlet and JSP engine
- tomcat7 - Servlet and JSP engine
It was discovered that Tomcat incorrectly handled certain requests
submitted using chunked transfer encoding. A remote attacker could use this
flaw to cause the Tomcat server to stop responding, resulting in a denial
of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS.
It was discovered that Tomcat incorrectly handled certain authentication
requests. A remote attacker could possibly use this flaw to inject a
request that would get executed with a victim's credentials. This issue
only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 12.10.
It was discovered that Tomcat sometimes exposed elements of a previous
request to the current request. This could allow a remote attacker to
possibly obtain sensitive information. This issue only affected Ubuntu
12.10 and Ubuntu 13.04. (CVE-2013-2071)
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- libtomcat7-java 7.0.35-1~exp2ubuntu1.1
- Ubuntu 12.10:
- libtomcat7-java 7.0.30-0ubuntu1.2
- Ubuntu 12.04 LTS:
- libtomcat6-java 6.0.35-1ubuntu3.3
- Ubuntu 10.04 LTS:
- libtomcat6-java 6.0.24-2ubuntu1.13
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.