A etcd security update has been released for Ubuntu Linux 22.10 and 23.04.

[USN-6189-1] etcd vulnerability

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Ubuntu Security Notice USN-6189-1
June 28, 2023

etcd vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.10

Summary:

etcd could be made to expose sensitive information over the
network.

Software Description:
- etcd: highly-available key value store -- client

Details:

It was discovered that etcd leaked credentials when debugging
was enabled. This allowed remote attackers to discover etcd
authentication credentials and possibly escalate privileges on
systems using etcd.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
etcd-client 3.4.23-4ubuntu0.1
etcd-server 3.4.23-4ubuntu0.1

Ubuntu 22.10:
etcd-client 3.3.25+dfsg-7ubuntu0.22.10.2
etcd-server 3.3.25+dfsg-7ubuntu0.22.10.2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6189-1
CVE-2021-28235

Package Information:
https://launchpad.net/ubuntu/+source/etcd/3.4.23-4ubuntu0.1
https://launchpad.net/ubuntu/+source/etcd/3.3.25+dfsg-7ubuntu0.22.10.2