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Ubuntu Security Notice USN-6519-2
November 29, 2023
ec2-hibinit-agent update
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
Summary:
A security improvement was added to EC2 hibagent.
Software Description:
- ec2-hibinit-agent: Amazon EC2 hibernation agent
Details:
USN-6519-1 added IMDSv2 support to EC2 hibagent. This update provides
the corresponding update for Ubuntu 16.04 LTS.
Original advisory details:
 The EC2 hibagent package has been updated to add IMDSv2 support, as IMDSv1
 uses an insecure protocol and is no longer recommended.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  ec2-hibinit-agent               1.0.0-0ubuntu4~16.04.4+esm1
In general, a standard system update will make all the necessary changes.
References:
  https://ubuntu.com/security/notices/USN-6519-2
  https://ubuntu.com/security/notices/USN-6519-1
  https://launchpad.net/bugs/1941785