USN-4103-2: Docker vulnerability

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• 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

• docker.io - 18.09.7-0ubuntu1~19.04.5

Ubuntu 18.04

• docker.io - 18.09.7-0ubuntu1~18.04.4

Ubuntu 16.04

• docker.io - 18.09.7-0ubuntu1~16.04.5

In general, a standard system update will make all the necessary changes.

References

• CVE-2019-1020014

Related notices

• USN-4103-1: golang-github-docker-docker-credential-helpers, golang-docker-credential-helpers
• USN-4856-1: golang-github-docker-docker-credential-helpers-dev, golang-github-docker-docker-credential-helpers, golang-docker-credential-helpers