USN-2130-1: Tomcat vulnerabilities

Ubuntu Security Notice USN-2130-1

6th 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

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

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

CVE-2013-4286, CVE-2013-4322, CVE-2014-0033, CVE-2014-0050