USN-1841-1: Tomcat vulnerabilities

Releases

• Ubuntu 13.04
• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 10.04

Packages

• tomcat6 - Servlet and JSP engine
• tomcat7 - Servlet and JSP engine

Details

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.
(CVE-2012-3544)

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.
(CVE-2013-2067)

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)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 13.04

• libtomcat7-java - 7.0.35-1~exp2ubuntu1.1

Ubuntu 12.10

• libtomcat7-java - 7.0.30-0ubuntu1.2

Ubuntu 12.04

• libtomcat6-java - 6.0.35-1ubuntu3.3

Ubuntu 10.04

• libtomcat6-java - 6.0.24-2ubuntu1.13

In general, a standard system update will make all the necessary changes.

References

• CVE-2012-3544
• CVE-2013-2067
• CVE-2013-2071