Ubuntu alert USN-2655-1 (tomcat6)

From:
    	     
 
Marc Deslauriers <marc.deslauriers@canonical.com> 
To:
    	     
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
    	     
 
[USN-2655-1] Tomcat vulnerabilities 
Date:
    	     
 
Thu, 25 Jun 2015 08:33:43 -0400
Message-ID:
    	     
 
<558BF527.9000104@canonical.com>
==========================================================================
Ubuntu Security Notice USN-2655-1
June 25, 2015

tomcat6 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in Tomcat.

Software Description:
- 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 memory consumption, resulting in a
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 LTS:
  libtomcat6-java                 6.0.35-1ubuntu3.6

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

References:
  http://www.ubuntu.com/usn/usn-2655-1
  CVE-2014-0227, CVE-2014-0230, CVE-2014-7810

Package Information:
  https://launchpad.net/ubuntu/+source/tomcat6/6.0.35-1ubun...


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