ESB-2018.2162 - [Ubuntu] tomcat: Multiple vulnerabilities 2018-07-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2162
                 Tomcat vulnerabilities patched in Ubuntu
                               26 July 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           tomcat8
                   tomcat7
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Remote/Unauthenticated
                   Reduced Security  -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8034 CVE-2018-1336 

Reference:         ESB-2018.2125

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3723-1

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Ubuntu Security Notice USN-3723-1
July 25, 2018

tomcat7, tomcat8 vulnerabilities
==========================================================================

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

- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Tomcat.

Software Description:
- - tomcat8: Servlet and JSP engine
- - tomcat7: Servlet and JSP engine

Details:

It was discovered that Tomcat incorrectly handled decoding certain
UTF-8 strings. A remote attacker could possibly use this issue to cause
Tomcat to crash, resulting in a denial of service. (CVE-2018-1336)

It was discovered that the Tomcat WebSocket client incorrectly performed
hostname verification. A remote attacker could possibly use this issue to
intercept sensitive information. (CVE-2018-8034)

Update instructions:

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

Ubuntu 16.04 LTS:
  libtomcat8-java                 8.0.32-1ubuntu1.7
  tomcat8                         8.0.32-1ubuntu1.7

Ubuntu 14.04 LTS:
  libtomcat7-java                 7.0.52-1ubuntu0.15
  tomcat7                         7.0.52-1ubuntu0.15

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

References:
  https://usn.ubuntu.com/usn/usn-3723-1
  CVE-2018-1336, CVE-2018-8034

Package Information:
  https://launchpad.net/ubuntu/+source/tomcat8/8.0.32-1ubuntu1.7
  https://launchpad.net/ubuntu/+source/tomcat7/7.0.52-1ubuntu0.15

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