USN-3431-1: NSS vulnerability

Publication date

2 October 2017

Overview

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


Packages

  • nss - Network Security Service library

Details

Martin Thomson discovered that NSS incorrectly generated handshake hashes.
A remote attacker could use this issue to cause NSS to crash, resulting in
a denial of service, or possibly execute arbitrary code.

Martin Thomson discovered that NSS incorrectly generated handshake hashes.
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 and Chromium, 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
17.04 zesty libnss3 –  2:3.28.4-0ubuntu0.17.04.3
16.04 xenial libnss3 –  2:3.28.4-0ubuntu0.16.04.3
14.04 trusty libnss3 –  2:3.28.4-0ubuntu0.14.04.3

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Have additional questions?

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