USN-3688-1: Spidermonkey vulnerabilities

19 June 2018

mozjs52 vulnerabilities

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

  • Ubuntu 18.04 LTS
  • Ubuntu 17.10


Several security issues were fixed in Spidermonkey.

Software Description

  • mozjs52 - SpiderMonkey JavaScript library


Multiple memory safety issues were fixed in Spidermonkey. An attacker could potentially exploit these to cause a denial of service, or execute arbitrary code.

Update instructions

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

Ubuntu 18.04 LTS
libmozjs-52-0 - 52.8.1-0ubuntu0.18.04.1
Ubuntu 17.10
libmozjs-52-0 - 52.8.1-0ubuntu0.17.10.1

To update your system, please follow these instructions:

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