Ubuntu Security Update USN-4397-2: NSS vulnerability

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nss vulnerability


A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 14.04 ESM
  • Ubuntu 12.04 ESM
Summary


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

Software Description

  • nss - Network Security Service library
Details


USN-4397-1 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 Garcia discovered that NSS incorrectly handled DSA key generation. A local attacker could possibly use this issue to perform a timing attack and recover DSA keys. (CVE-2020-12399)

Update instructions


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

Ubuntu 14.04 ESM
libnss3 - 2:3.28.4-0ubuntu0.14.04.5+esm5
Ubuntu 12.04 ESM
libnss3 - 2:3.28.4-0ubuntu0.12.04.8

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


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