Ubuntu 1463-3: Firefox regressions

    Date20 Jun 2012
    CategoryUbuntu
    112
    Posted ByLinuxSecurity Advisories
    USN-1463-1 introduced regressions in Firefox.
    ==========================================================================
    Ubuntu Security Notice USN-1463-3
    June 20, 2012
    
    firefox regressions
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    - Ubuntu 11.04
    - Ubuntu 10.04 LTS
    
    Summary:
    
    USN-1463-1 introduced regressions in Firefox.
    
    Software Description:
    - firefox: Mozilla Open Source web browser
    
    Details:
    
    USN-1463-1 fixed vulnerabilities in Firefox. The new package caused a
    regression in the rendering of Hebrew text and the ability of the Hotmail
    inbox to auto-update. This update fixes the problem.
    
    Original advisory details:
    
     Jesse Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew
     McCreight, Olli Pettay, Boris Zbarsky, and Brian Bondy discovered memory
     safety issues affecting Firefox. If the user were tricked into opening a
     specially crafted page, an attacker could possibly exploit these to cause a
     denial of service via application crash, or potentially execute code with
     the privileges of the user invoking Firefox. (CVE-2012-1937, CVE-2012-1938)
     
     It was discovered that Mozilla's WebGL implementation exposed a bug in
     certain NVIDIA graphics drivers. The impact of this issue has not been
     disclosed at this time. (CVE-2011-3101)
     
     Adam Barth discovered that certain inline event handlers were not being
     blocked properly by the Content Security Policy's (CSP) inline-script
     blocking feature. Web applications relying on this feature of CSP to
     protect against cross-site scripting (XSS) were not fully protected. With
     cross-site scripting vulnerabilities, if a user were tricked into viewing a
     specially crafted page, a remote attacker could exploit this to modify the
     contents, or steal confidential data, within the same domain.
     (CVE-2012-1944)
     
     Paul Stone discovered that a viewed HTML page hosted on a Windows or Samba
     share could load Windows shortcut files (.lnk) in the same share. These
     shortcut files could then link to arbitrary locations on the local file
     system of the individual loading the HTML page. An attacker could
     potentially use this vulnerability to show the contents of these linked
     files or directories in an iframe, resulting in information disclosure.
     (CVE-2012-1945)
     
     Arthur Gerkis discovered a use-after-free vulnerability while
     replacing/inserting a node in a document. If the user were tricked into
     opening a specially crafted page, an attacker could possibly exploit this
     to cause a denial of service via application crash, or potentially execute
     code with the privileges of the user invoking Firefox. (CVE-2012-1946)
     
     Kaspar Brand discovered a vulnerability in how the Network Security
     Services (NSS) ASN.1 decoder handles zero length items. If the user were
     tricked into opening a specially crafted page, an attacker could possibly
     exploit this to cause a denial of service via application crash.
     (CVE-2012-0441)
     
     Abhishek Arya discovered two buffer overflow and one use-after-free
     vulnerabilities. If the user were tricked into opening a specially crafted
     page, an attacker could possibly exploit these to cause a denial of service
     via application crash, or potentially execute code with the privileges of
     the user invoking Firefox. (CVE-2012-1940, CVE-2012-1941, CVE-2012-1947)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      firefox                         13.0.1+build1-0ubuntu0.12.04.1
    
    Ubuntu 11.10:
      firefox                         13.0.1+build1-0ubuntu0.11.10.1
    
    Ubuntu 11.04:
      firefox                         13.0.1+build1-0ubuntu0.11.04.1
    
    Ubuntu 10.04 LTS:
      firefox                         13.0.1+build1-0ubuntu0.10.04.1
    
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1463-3
      http://www.ubuntu.com/usn/usn-1463-1
      https://launchpad.net/bugs/1013425
    
    Package Information:
      https://launchpad.net/ubuntu/+source/firefox/13.0.1+build1-0ubuntu0.12.04.1
      https://launchpad.net/ubuntu/+source/firefox/13.0.1+build1-0ubuntu0.11.10.1
      https://launchpad.net/ubuntu/+source/firefox/13.0.1+build1-0ubuntu0.11.04.1
      https://launchpad.net/ubuntu/+source/firefox/13.0.1+build1-0ubuntu0.10.04.1
    
    
    
    
    
    
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