Ubuntu Security Notice 6563-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. Marcus Brinkmann discovered that Thunderbird did not properly parse a PGP/MIME payload that contains digitally signed text. An attacker could potentially exploit this issue to spoof an email message.
e4db07847539dbbc6ea2de8030758116eeabaa195c34555d719a465328711716
Debian Linux Security Advisory 5582-1 - Multiple security issues were discovered in Thunderbird, which could result in denial of service, the execution of arbitrary code or spoofing of signed PGP/MIME and SMIME emails.
b3f70726ef2fae015527060cb4b5e5d13980592e40aae2e78d1c509408fdb9b4
Debian Linux Security Advisory 5581-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape or clickjacking.
8e9ebae0bccbe4842bf36efe2bc7e6db305fad064c670f91a6bc7f76d2742daa