Ubuntu Security Notice USN-6519-2

Ubuntu Security Notice 6519-2 - USN-6519-1 added IMDSv2 support to EC2 hibagent. This update provides the corresponding update for Ubuntu 16.04 LTS. The EC2 hibagent package has been updated to add IMDSv2 support, as IMDSv1 uses an insecure protocol and is no longer recommended.

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