Ubuntu Security Notices
USN-5328-2

USN-5328-2: OpenSSL vulnerability

Publication date

15 March 2022

Overview

OpenSSL could be made to stop responding if it opened a specially crafted certificate.

Releases

16.04 LTS 14.04 LTS

Packages

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

Details

USN-5328-1 fixed a vulnerability in OpenSSL. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory 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.

USN-5328-1 fixed a vulnerability in OpenSSL. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory 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

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

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
16.04 xenial	libssl1.0.0 – 1.0.2g-1ubuntu4.20+esm2
14.04 trusty	libssl1.0.0 – 1.0.1f-1ubuntu2.27+esm5

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References

CVE-2022-0778

CVE-2022-0778