Ubuntu 1685-1: Tomcat vulnerabilities

    Date14 Jan 2013
    CategoryUbuntu
    59
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Tomcat.
    ==========================================================================
    Ubuntu Security Notice USN-1685-1
    January 14, 2013
    
    tomcat6, tomcat7 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Several security issues were fixed in Tomcat.
    
    Software Description:
    - tomcat7: Servlet and JSP engine
    - tomcat6: Servlet and JSP engine
    
    Details:
    
    It was discovered that Tomcat incorrectly performed certain security
    constraint checks in the FORM authenticator. A remote attacker could
    possibly use this flaw with a specially-crafted URI to bypass security
    constraint checks. This issue only affected Ubuntu 10.04 LTS, Ubuntu 11.10
    and Ubuntu 12.04 LTS. (CVE-2012-3546)
    
    It was discovered that Tomcat incorrectly handled requests that lack a
    session identifier. A remote attacker could possibly use this flaw to
    bypass the cross-site request forgery protection. (CVE-2012-4431)
    
    It was discovered that Tomcat incorrectly handled sendfile and HTTPS when
    the NIO connector is used. A remote attacker could use this flaw to cause
    Tomcat to stop responsing, resulting in a denial of service. This issue
    only affected Ubuntu 10.04 LTS, Ubuntu 11.10 and Ubuntu 12.04 LTS.
    (CVE-2012-4534)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.10:
      libtomcat7-java                 7.0.30-0ubuntu1.1
    
    Ubuntu 12.04 LTS:
      libtomcat6-java                 6.0.35-1ubuntu3.2
    
    Ubuntu 11.10:
      libtomcat6-java                 6.0.32-5ubuntu1.4
    
    Ubuntu 10.04 LTS:
      libtomcat6-java                 6.0.24-2ubuntu1.12
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1685-1
      CVE-2012-3546, CVE-2012-4431, CVE-2012-4534
    
    Package Information:
      https://launchpad.net/ubuntu/+source/tomcat7/7.0.30-0ubuntu1.1
      https://launchpad.net/ubuntu/+source/tomcat6/6.0.35-1ubuntu3.2
      https://launchpad.net/ubuntu/+source/tomcat6/6.0.32-5ubuntu1.4
      https://launchpad.net/ubuntu/+source/tomcat6/6.0.24-2ubuntu1.12
    
    
    
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