Ubuntu Security Notice 3346-3 - USN-3346-1 and USN-3346-2 fixed two vulnerabilities in Bind and a regression, respectively. This update provides the corresponding update for Ubuntu 12.04 ESM. Clément Berthaux discovered that Bind did not correctly check TSIG A authentication for zone update requests. An attacker could use this A to improperly perform zone updates. Various other issues were also addressed.
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