An OpenSSL security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 21.10, and 22.04 LTS.

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Ubuntu Security Notice USN-5502-1
July 05, 2022

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

- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

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

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Alex Chernyakhovsky discovered that OpenSSL incorrectly handled AES OCB
mode when using the AES-NI assembly optimized implementation on 32-bit
x86 platforms. A remote attacker could possibly use this issue to obtain
sensitive information.

Update instructions:

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

Ubuntu 22.04 LTS:
libssl3 3.0.2-0ubuntu1.6

Ubuntu 21.10:
libssl1.1 1.1.1l-1ubuntu1.6

Ubuntu 20.04 LTS:
libssl1.1 1.1.1f-1ubuntu2.16

Ubuntu 18.04 LTS:
libssl1.1 1.1.1-1ubuntu2.1~18.04.20

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5502-1
CVE-2022-2097

Package Information:
  https://launchpad.net/ubuntu/+source/openssl/3.0.2-0ubuntu1.6
  https://launchpad.net/ubuntu/+source/openssl/1.1.1l-1ubuntu1.6
  https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.16
  https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1~18.04.20