Ubuntu 1355-2: Mozvoikko update

    Date03 Feb 2012
    CategoryUbuntu
    73
    Posted ByLinuxSecurity Advisories
    This update provides compatible Mozvoikko packages for the latest Firefox.
    ==========================================================================
    Ubuntu Security Notice USN-1355-2
    February 03, 2012
    
    mozvoikko update
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.10
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    This update provides compatible Mozvoikko packages for the latest Firefox.
    
    Software Description:
    - mozvoikko: Finnish spell-checker extension for Firefox
    
    Details:
    
    USN-1355-1 fixed vulnerabilities in Firefox. This update provides an
    updated Mozvoikko package for use with the latest Firefox.
    
    Original advisory details:
    
     It was discovered that if a user chose to export their Firefox Sync key
     the "Firefox Recovery Key.html" file is saved with incorrect permissions,
     making the file contents potentially readable by other users.
     (CVE-2012-0450)
     
     Nicolas Gregoire and Aki Helin discovered that when processing a malformed
     embedded XSLT stylesheet, Firefox can crash due to memory corruption. If
     the user were tricked into opening a specially crafted page, an attacker
     could exploit this to cause a denial of service via application crash, or
     potentially execute code with the privileges of the user invoking Firefox.
     (CVE-2012-0449)
     
     It was discovered that memory corruption could occur during the decoding of
     Ogg Vorbis files. If the user were tricked into opening a specially crafted
     file, an attacker could exploit this to cause a denial of service via
     application crash, or potentially execute code with the privileges of the
     user invoking Firefox. (CVE-2012-0444)
     
     Tim Abraldes discovered that when encoding certain images types the
     resulting data was always a fixed size. There is the possibility of
     sensitive data from uninitialized memory being appended to these images.
     (CVE-2012-0447)
     
     It was discovered that Firefox did not properly perform XPConnect security
     checks. An attacker could exploit this to conduct cross-site scripting
     (XSS) attacks through web pages and Firefox extensions. 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-2012-0446)
     
     It was discovered that Firefox did not properly handle node removal in the
     DOM. If the user were tricked into opening a specially crafted page, an
     attacker could exploit this to cause a denial of service via application
     crash, or potentially execute code with the privileges of the user invoking
     Firefox. (CVE-2011-3659)
     
     Alex Dvorov discovered that Firefox did not properly handle sub-frames in
     form submissions. An attacker could exploit this to conduct phishing
     attacks using HTML5 frames. (CVE-2012-0445)
     
     Ben Hawkes, Christian Holler, Honza Bombas, Jason Orendorff, Jesse
     Ruderman, Jan Odvarko, Peter Van Der Beken, Bob Clary, and Bill McCloskey
     discovered memory safety issues affecting Firefox. If the user were tricked
     into opening a specially crafted page, an attacker could exploit these to
     cause a denial of service via application crash, or potentially execute
     code with the privileges of the user invoking Firefox. (CVE-2012-0442,
     CVE-2012-0443)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.10:
      xul-ext-mozvoikko               2.0.1-0ubuntu0.11.10.1
    
    Ubuntu 11.04:
      xul-ext-mozvoikko               2.0.1-0ubuntu0.11.04.1
    
    Ubuntu 10.10:
      xul-ext-mozvoikko               2.0.1-0ubuntu0.10.10.1
    
    Ubuntu 10.04 LTS:
      xul-ext-mozvoikko               2.0.1-0ubuntu0.10.04.1
    
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1355-2
      http://www.ubuntu.com/usn/usn-1355-1
      https://launchpad.net/bugs/923319
    
    Package Information:
      https://launchpad.net/ubuntu/+source/mozvoikko/2.0.1-0ubuntu0.11.10.1
      https://launchpad.net/ubuntu/+source/mozvoikko/2.0.1-0ubuntu0.11.04.1
      https://launchpad.net/ubuntu/+source/mozvoikko/2.0.1-0ubuntu0.10.10.1
      https://launchpad.net/ubuntu/+source/mozvoikko/2.0.1-0ubuntu0.10.04.1
    
    
    
    
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