Ubuntu 1804-2: IcedTea-Web regression

    Date23 Apr 2013
    CategoryUbuntu
    394
    Posted ByLinuxSecurity Advisories
    Due to a regression, IcedTea-Web might not be able to access some sites.
    
    ==========================================================================
    Ubuntu Security Notice USN-1804-2
    April 23, 2013
    
    icedtea-web regression
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    
    Summary:
    
    Due to a regression, IcedTea-Web might not be able to access some sites.
    
    Software Description:
    - icedtea-web: A web browser plugin to execute Java applets
    
    Details:
    
    USN-1804-1 fixed vulnerabilities in IcedTea-Web. This update introduced
    a regression with the Java Network Launching Protocol (JNLP) when fetching
    content over SSL under certain configurations, such as when using the
    community-supported IcedTead 7 browser plugin. This update fixes the
    problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     Jiri Vanek discovered that IcedTea-Web would use the same classloader for
     applets from different domains. A remote attacker could exploit this to
     expose sensitive information or potentially manipulate applets from other
     domains. (CVE-2013-1926)
    
     It was discovered that IcedTea-Web did not properly verify JAR files and
     was susceptible to the GIFAR attack. If a user were tricked into opening a
     malicious website, a remote attacker could potentially exploit this to
     execute code under certain circumstances. (CVE-2013-1927)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      icedtea-7-plugin                1.2.3-0ubuntu0.12.04.2
      icedtea-netx                    1.2.3-0ubuntu0.12.04.2
    
    Ubuntu 11.10:
      icedtea-netx                    1.2.3-0ubuntu0.11.10.2
    
    After a standard system update you need to restart your browser to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1804-2
      http://www.ubuntu.com/usn/usn-1804-1
      https://launchpad.net/bugs/1171506
    
    Package Information:
      https://launchpad.net/ubuntu/+source/icedtea-web/1.2.3-0ubuntu0.12.04.2
      https://launchpad.net/ubuntu/+source/icedtea-web/1.2.3-0ubuntu0.11.10.2
    
    
    
    
    
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