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USN-5502-1: OpenSSL vulnerability

5 July 2022

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



  • openssl - Secure Socket Layer (SSL) cryptographic library and tools


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
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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