USN-3028-1: NSPR vulnerability

11 July 2016

nspr vulnerability

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

  • Ubuntu 16.04 LTS
  • Ubuntu 15.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


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

Software Description

  • nspr - NetScape Portable Runtime Library


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

Update instructions

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

Ubuntu 16.04 LTS
libnspr4 - 2:4.12-0ubuntu0.16.04.1
Ubuntu 15.10
libnspr4 - 2:4.12-0ubuntu0.15.10.1
Ubuntu 14.04 LTS
libnspr4 - 2:4.12-0ubuntu0.14.04.1
Ubuntu 12.04 LTS
libnspr4 - 4.12-0ubuntu0.12.04.1

To update your system, please follow these instructions:

After a standard system update you need to restart your session to make all the necessary changes.