| Description: | Mozilla Thunderbird is a standalone mail and newsgroup client.Several flaws were found in the processing of malformed web content. A webpage containing malicious content could cause Thunderbird to crash or,potentially, execute arbitrary code with the privileges of the user runningThunderbird. (CVE-2014-1518, CVE-2014-1524, CVE-2014-1529, CVE-2014-1531)A use-after-free flaw was found in the way Thunderbird resolved hosts incertain circumstances. An attacker could use this flaw to crash Thunderbirdor, potentially, execute arbitrary code with the privileges of the userrunning Thunderbird. (CVE-2014-1532)An out-of-bounds read flaw was found in the way Thunderbird decoded JPEGimages. Loading an email or a web page containing a specially crafted JPEGimage could cause Thunderbird to crash. (CVE-2014-1523)A flaw was found in the way Thunderbird handled browser navigations throughhistory. An attacker could possibly use this flaw to cause the address barof the browser to display a web page name while loading content from anentirely different web page, which could allow for cross-site scripting(XSS) attacks. (CVE-2014-1530)Red Hat would like to thank the Mozilla project for reporting these issues.Upstream acknowledges Bobby Holley, Carsten Book, Christoph Diehl, GaryKwong, Jan de Mooij, Jesse Ruderman, Nathan Froyd, Christian Holler,Abhishek Arya, Mariusz Mlynski, moz_bug_r_a4, Nils, Tyson Smith and JesseSchwartzentrube as the original reporters of these issues.Note: All of the above issues cannot be exploited by a specially craftedHTML mail message as JavaScript is disabled by default for mail messages.They could be exploited another way in Thunderbird, for example, whenviewing the full remote content of an RSS feed.For technical details regarding these flaws, refer to the Mozilla securityadvisories for Thunderbird 24.5.0. You can find a link to the Mozillaadvisories in the References section of this erratum.All Thunderbird users should upgrade to this updated package, whichcontains Thunderbird version 24.5.0, which corrects these issues.After installing the update, Thunderbird must be restarted for the changesto take effect. |