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USN-4231-1: NSS vulnerability

8 January 2020

NSS could be made to execute arbitrary code if it received a specially crafted input.



  • nss - Network Security Service library


It was discovered that NSS incorrectly handled certain inputs. An
attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 19.10
Ubuntu 19.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

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