1. Ubuntu Security Notices
  2. USN-4203-2

USN-4203-2: NSS vulnerability

Publication date

27 November 2019

Overview

NSS could be made to crash or run programs if it received specially crafted input.

Releases

Packages

  • nss - Network Security Service library

Details

USN-4203-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that NSS incorrectly handled certain memory operations. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

USN-4203-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that NSS incorrectly handled certain memory operations. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions

After a standard system update you need to restart any applications that use NSS, such as Evolution, 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
14.04 trusty libnss3 –  2:3.28.4-0ubuntu0.14.04.5+esm2
12.04 precise libnss3 –  2:3.28.4-0ubuntu0.12.04.5

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References

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