USN-2265-1: NSPR vulnerability

2 July 2014

nspr vulnerability

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

  • Ubuntu 14.04 LTS
  • Ubuntu 13.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


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

Software Description

  • nspr - NetScape Portable Runtime Library


Abhishek Arya discovered that NSPR incorrectly handled certain console functions. A remote attacker could use this issue to cause NSPR to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service.

Update instructions

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

Ubuntu 14.04 LTS
libnspr4 - 2:4.10.2-1ubuntu1.1
Ubuntu 13.10
libnspr4 - 2:4.9.5-1ubuntu1.2
Ubuntu 12.04 LTS
libnspr4 - 4.9.5-0ubuntu0.12.04.3
Ubuntu 10.04 LTS
libnspr4-0d - 4.9.5-0ubuntu0.10.04.3

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.