USN-2655-1: Tomcat vulnerabilities

Releases

• Ubuntu 12.04

Packages

• tomcat6 - Servlet and JSP engine

Details

It was discovered that Tomcat incorrectly handled data with malformed
chunked transfer coding. A remote attacker could possibly use this issue to
conduct HTTP request smuggling attacks, or cause Tomcat to consume
resources, resulting in a denial of service. (CVE-2014-0227)

It was discovered that Tomcat incorrectly handled HTTP responses occurring
before the entire request body was finished being read. A remote attacker
could possibly use this issue to cause a limited denial of service.
(CVE-2014-0230)

It was discovered that the Tomcat Expression Language (EL) implementation
incorrectly handled accessible interfaces implemented by inaccessible
classes. An attacker could possibly use this issue to bypass a
SecurityManager protection mechanism. (CVE-2014-7810)

Update instructions

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

Ubuntu 12.04

• libtomcat6-java - 6.0.35-1ubuntu3.6

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

References

• CVE-2014-0227
• CVE-2014-0230
• CVE-2014-7810

Related notices

• USN-2654-1: tomcat7-admin, tomcat7, tomcat7-examples, libservlet3.0-java-doc, libtomcat7-java, tomcat7-user, tomcat7-common, tomcat7-docs, libservlet3.0-java