USN-5328-1: OpenSSL vulnerability

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• openssl - Secure Socket Layer (SSL) cryptographic library and tools
• openssl1.0 - Secure Socket Layer (SSL) cryptographic library and tools

Details

Tavis Ormandy discovered that OpenSSL incorrectly parsed certain
certificates. A remote attacker could possibly use this issue to cause
OpenSSH to stop responding, resulting in a denial of service.

Update instructions

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

Ubuntu 21.10

• libssl1.1 - 1.1.1l-1ubuntu1.2

Ubuntu 20.04

• libssl1.1 - 1.1.1f-1ubuntu2.12

Ubuntu 18.04

• libssl1.0.0 - 1.0.2n-1ubuntu5.8
• libssl1.1 - 1.1.1-1ubuntu2.1~18.04.15

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

References

• CVE-2022-0778

Related notices

• USN-5328-2: libssl-dev, libssl-doc, openssl, libssl1.0.0
• USN-6457-1: nodejs, libnode72, libnode-dev, nodejs-doc