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RHSA-2012:0715: thunderbird security update

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RHSA-2012:0715: thunderbird security update



Mozilla Thunderbird is a standalone mail and newsgroup client.Several flaws were found in the processing of malformed content. Maliciouscontent could cause Thunderbird to crash or, potentially, execute arbitrarycode with the privileges of the user running Thunderbird. (CVE-2011-3101,CVE-2012-1937, CVE-2012-1938, CVE-2012-1939, CVE-2012-1940, CVE-2012-1941,CVE-2012-1946, CVE-2012-1947)Note: CVE-2011-3101 only affected users of certain NVIDIA display driverswith graphics cards that have hardware acceleration enabled.It was found that the Content Security Policy (CSP) implementation inThunderbird no longer blocked Thunderbird inline event handlers. Maliciouscontent could possibly bypass intended restrictions if that content reliedon CSP to protect against flaws such as cross-site scripting (XSS).(CVE-2012-1944)If a web server hosted content that is stored on a Microsoft Windows share,or a Samba share, loading such content with Thunderbird could result inWindows shortcut files (.lnk) in the same share also being loaded. Anattacker could use this flaw to view the contents of local files anddirectories on the victim's system. This issue also affected users openingcontent from Microsoft Windows shares, or Samba shares, that are mountedon their systems. (CVE-2012-1945)Red Hat would like to thank the Mozilla project for reporting these issues.Upstream acknowledges Ken Russell of Google as the original reporter ofCVE-2011-3101; Igor Bukanov, Olli Pettay, Boris Zbarsky, and Jesse Rudermanas the original reporters of CVE-2012-1937; Jesse Ruderman, Igor Bukanov,Bill McCloskey, Christian Holler, Andrew McCreight, and Brian Bondy as theoriginal reporters of CVE-2012-1938; Christian Holler as the originalreporter of CVE-2012-1939; security researcher Abhishek Arya of Google asthe original reporter of CVE-2012-1940, CVE-2012-1941, and CVE-2012-1947;security researcher Arthur Gerkis as the original reporter ofCVE-2012-1946; security researcher Adam Barth as the original reporter ofCVE-2012-1944; and security researcher Paul Stone as the original reporterof CVE-2012-1945.Note: None of the issues in this advisory can be exploited by aspecially-crafted HTML mail message as JavaScript is disabled by defaultfor mail messages. They could be exploited another way in Thunderbird, forexample, when viewing the full remote content of an RSS feed.All Thunderbird users should upgrade to this updated package, whichcontains Thunderbird version 10.0.5 ESR, which corrects these issues. Afterinstalling the update, Thunderbird must be restarted for the changes totake effect.


  • redhat-upgrade-thunderbird
  • redhat-upgrade-thunderbird-debuginfo

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