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Ubuntu 14.04 LTS: USN-3177-2 Moderate: Tomcat Security Issues Fix

ubuntu
Calendar Grey February 2, 2017
Scroller Ubuntu Esm H88
Tomcat vulnerabilities resolved in Ubuntu 14.04 and 12.04 LTS, tackling a range of security concerns arising from earlier patches.
USN-3177-1 introduced a regression in Tomcat.

Summary

USN-3177-1 introduced a regression in Tomcat.

Software Description:

- tomcat7: Servlet and JSP engine

- tomcat6: Servlet and JSP engine

Details:

USN-3177-1 fixed vulnerabilities in Tomcat. The update introduced a

regression in environments where Tomcat is started with a security manager.

This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that the Tomcat realm implementations incorrectly handled

passwords when a username didn't exist. A remote attacker could possibly

use this issue to enumerate usernames. This issue only applied to Ubuntu

12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)

Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly

limited use of a certain utility method. A malicious application could

possibly use this to bypass Security Manager restrictions. This issue only

applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.

(...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue update tomcat ubuntu regression fix

Update Instructions

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

Ubuntu 14.04 LTS:
  libtomcat7-java                 7.0.52-1ubuntu0.9
  tomcat7                         7.0.52-1ubuntu0.9

Ubuntu 12.04 LTS:
  libtomcat6-java                 6.0.35-1ubuntu3.10
  tomcat6                         6.0.35-1ubuntu3.10

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

References

https://ubuntu.com/security/notices/USN-3177-2

https://ubuntu.com/security/notices/USN-3177-1

https://bugs.launchpad.net/ubuntu/trusty/+source/tomcat7/+bug/1659589

February 02, 2017

Topics%20covered

Topics Covered

security advisory security issue update tomcat ubuntu regression fix

Package Information

https://launchpad.net/ubuntu/+source/tomcat7/7.0.52-1ubuntu0.9
https://launchpad.net/ubuntu/+source/tomcat6/6.0.35-1ubuntu3.10

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