| Description: | Several flaws were discovered in the browser engine of Thunderbird. If a user were tricked into viewing malicious content, a remote attacker could use this to crash Thunderbird or possibly run arbitrary code as the user invoking the program. An integer overflow was discovered in how Thunderbird processed CSS values. An attacker could exploit this to crash Thunderbird or possibly run arbitrary code as the user invoking the program. An integer overflow was discovered in how Thunderbird interpreted the XUL element. If a user were tricked into viewing malicious content, a remote attacker could use this to crash Thunderbird or possibly run arbitrary code as the user invoking the program. Aki Helin discovered that libpng did not properly handle certain malformed PNG images. If a user were tricked into opening a crafted PNG file, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. Yosuke Hasegawa discovered that the same-origin check in Thunderbird could be bypassed by utilizing the importScripts Web Worker method. If a user were tricked into viewing malicious content, an attacker could exploit this to read data from other domains. Chris Evans discovered that Thunderbird did not properly process improper CSS selectors. If a user were tricked into viewing malicious content, an attacker could exploit this to read data from other domains. Soroush Dalili discovered that Thunderbird did not properly handle script error output. An attacker could use this to access URL parameters from other domains |