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USN-4417-2: NSS vulnerability

6 July 2020

NSS could be made to expose sensitive information.



  • nss - Network Security Service library


USN-4417-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Cesar Pereida, Billy Bob Brumley, Yuval Yarom, and Nicola Tuveri discovered
that NSS incorrectly handled RSA key generation. A local attacker could
possibly use this issue to perform a timing attack and recover RSA keys.

Update instructions

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

Ubuntu 14.04
Ubuntu 12.04

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


Related notices

  • USN-4417-1: nss, libnss3-tools, libnss3-dev, libnss3, libnss3-1d, libnss3-nssdb