USN-4103-2: Docker vulnerability

Docker vulnerability

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

• Ubuntu 19.04


• Ubuntu 18.04 LTS


• Ubuntu 16.04 LTS

Summary

Docker could be made to crash or run programs as your login.

Software Description

• docker.io - Linux container runtime

Details

Jasiel Spelman discovered that a double free existed in the docker-credential-
helpers dependency of Docker. A local attacker could use this to cause a denial of service
(crash) or possibly execute arbitrary code.

Original advisory details:

Jasiel Spelman discovered that a double free existed in docker-credential-
helpers. A local attacker could use this to cause a denial of service
(crash) or possibly execute arbitrary code.

Update instructions

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

Ubuntu 19.04

Ubuntu 18.04 LTS

Ubuntu 16.04 LTS

To update your system, please follow these instructions: