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=========================================================== Ubuntu Security Notice USN-400-1 January 04, 2007 mozilla-thunderbird vulnerabilities CVE-2006-6497, CVE-2006-6498, CVE-2006-6499, CVE-2006-6501, CVE-2006-6502, CVE-2006-6503, CVE-2006-6505 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 5.10: mozilla-thunderbird 1.5.0.9-0ubuntu0.5.10 mozilla-thunderbird-dev 1.5.0.9-0ubuntu0.5.10 Ubuntu 6.06 LTS: mozilla-thunderbird 1.5.0.9-0ubuntu0.6.06 mozilla-thunderbird-dev 1.5.0.9-0ubuntu0.6.06 Ubuntu 6.10: mozilla-thunderbird 1.5.0.9-0ubuntu0.6.10 mozilla-thunderbird-dev 1.5.0.9-0ubuntu0.6.10 After a standard system upgrade you need to restart Thunderbird to effect the necessary changes. Details follow: Georgi Guninski and David Bienvenu discovered that long Content-Type and RFC2047-encoded headers we vulnerable to heap overflows. By tricking the user into opening a specially crafted email, an attacker could execute arbitrary code with user privileges. (CVE-2006-6506) Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges or bypass internal XSS protections by tricking the user into opening a malicious email containing JavaScript. Please note that JavaScript is disabled by default for emails, and it is not recommended to enable it. (CVE-2006-6497, CVE-2006-6498, CVE-2006-6499, CVE-2006-6501, CVE-2006-6502, CVE-2006-6503)