USN-2130-1: Tomcat vulnerabilities

6 March 2014

tomcat6, tomcat7 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 13.10
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in Tomcat.

Software Description

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

Details

It was discovered that Tomcat incorrectly handled certain inconsistent HTTP headers. A remote attacker could possibly use this flaw to conduct request smuggling attacks. (CVE-2013-4286)

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. (CVE-2013-4322)

It was discovered that Tomcat incorrectly applied the disableURLRewriting setting when handling a session id in a URL. A remote attacker could possibly use this flaw to conduct session fixation attacks. This issue only applied to Ubuntu 12.04 LTS. (CVE-2014-0033)

It was discovered that Tomcat incorrectly handled malformed Content-Type headers and multipart requests. A remote attacker could use this flaw to cause the Tomcat server to stop responding, resulting in a denial of service. This issue only applied to Ubuntu 12.10 and Ubuntu 13.10. (CVE-2014-0050)

Update instructions

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

Ubuntu 13.10
libtomcat7-java - 7.0.42-1ubuntu0.1
Ubuntu 12.10
libtomcat7-java - 7.0.30-0ubuntu1.3
Ubuntu 12.04 LTS
libtomcat6-java - 6.0.35-1ubuntu3.4
Ubuntu 10.04 LTS
libtomcat6-java - 6.0.24-2ubuntu1.15

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.

References