Ubuntu 9.04 : thunderbird update (USN-927-8)
Medium Nessus Plugin ID 47823
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionUSN-927-1 fixed vulnerabilities in NSS. This update provides the Thunderbird update to use the new NSS.
Marsh Ray and Steve Dispensa discovered a flaw in the TLS and SSLv3 protocols. If an attacker could perform a man in the middle attack at the start of a TLS connection, the attacker could inject arbitrary content at the beginning of the user's session. This update adds support for the new new renegotiation extension and will use it when the server supports it.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.