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Ubuntu 15.04: USN-2654-1 Critical: Tomcat XML Parser Attack Risk

ubuntu
Calendar Grey June 25, 2015
Dist Ubuntu Esm H88
Apache vulnerabilities outlined in Ubuntu Security Advisory USN-2785-2 addressing severe flaws affecting the system.
Several security issues were fixed in Tomcat.

Summary

Several security issues were fixed in Tomcat.

Software Description:

- tomcat7: Servlet and JSP engine

Details:

It was discovered that the Tomcat XML parser incorrectly handled XML

External Entities (XXE). A remote attacker could possibly use this issue to

read arbitrary files. This issue only affected Ubuntu 14.04 LTS.

(CVE-2014-0119)

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. This issue only affected

Ubuntu 14.04 LTS. (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 memory consumption, resulting in a

denial of service. This issue only affected Ubuntu 14.04 LTS.

(CVE-2014-0230)

It was dis...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical remote attack Ubuntu Tomcat resource exhaustion addressed issue

Update Instructions

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

Ubuntu 15.04:
  libtomcat7-java                 7.0.56-2ubuntu0.1

Ubuntu 14.10:
  libtomcat7-java                 7.0.55-1ubuntu0.2

Ubuntu 14.04 LTS:
  libtomcat7-java                 7.0.52-1ubuntu0.3

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

References

https://ubuntu.com/security/notices/USN-2654-1

CVE-2014-0119, CVE-2014-0227, CVE-2014-0230, CVE-2014-7810

Severity
critical
Lowest
Low
Medium
High
Critical

June 25, 2015

Topics%20covered

Topics Covered

security advisory critical remote attack Ubuntu Tomcat resource exhaustion addressed issue

Package Information

https://launchpad.net/ubuntu/+source/tomcat7/7.0.56-2ubuntu0.1
https://launchpad.net/ubuntu/+source/tomcat7/7.0.55-1ubuntu0.2
https://launchpad.net/ubuntu/+source/tomcat7/7.0.52-1ubuntu0.3

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