Red Hat Security Advisory 2013-1823-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. Several flaws were found in the processing of malformed content. Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. A flaw was found in the way Thunderbird rendered web content with missing character encoding information. An attacker could use this flaw to possibly bypass same-origin inheritance and perform cross site-scripting attacks.
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