Mozilla Thunderbird is the next-generation mail client from the Mozilla project.
The following vulnerabilities were found and fixed in Mozilla Thunderbird:
The GIF heap overflow could be triggered by a malicious GIF image that would end up executing arbitrary code with the rights of the user running Thunderbird. The other overflow issues, while not thought to be exploitable, would have the same impact. Furthermore, by setting up malicious websites and convincing users to follow untrusted links, attackers may leverage the spoofing issue to trick user into installing malicious extensions.
There is no known workaround at this time.
All Mozilla Thunderbird users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/mozilla-thunderbird-1.0.2"
All Mozilla Thunderbird binary users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/mozilla-thunderbird-bin-1.0.2"