USN-2302-1: Tomcat vulnerabilities

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04
• Ubuntu 10.04

Packages

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

Details

David Jorm 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 consume resources, resulting in a denial
of service. (CVE-2014-0075)

It was discovered that Tomcat did not properly restrict XSLT stylesheets.
An attacker could use this issue with a crafted web application to bypass
security-manager restrictions and read arbitrary files. (CVE-2014-0096)

It was discovered that Tomcat incorrectly handled certain Content-Length
headers. A remote attacker could use this flaw in configurations where
Tomcat is behind a reverse proxy to perform HTTP request smuggling attacks.
(CVE-2014-0099)

Update instructions

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

Ubuntu 14.04

• libtomcat7-java - 7.0.52-1ubuntu0.1

Ubuntu 12.04

• libtomcat6-java - 6.0.35-1ubuntu3.5

Ubuntu 10.04

• libtomcat6-java - 6.0.24-2ubuntu1.16

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

References

• CVE-2014-0075
• CVE-2014-0096
• CVE-2014-0099