USN-4589-2: Docker vulnerability

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• docker.io - Linux container runtime

Details

USN-4589-1 fixed a vulnerability in containerd. This update provides
the corresponding update for docker.io.

Original advisory details:

It was discovered that containerd could be made to expose sensitive
information when processing URLs in container image manifests. A
remote attacker could use this to trick the user and obtain the
user's registry credentials.

Update instructions

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

Ubuntu 20.04

• docker.io - 19.03.8-0ubuntu1.20.04.1

Ubuntu 18.04

• docker.io - 19.03.6-0ubuntu1~18.04.2

Ubuntu 16.04

• docker.io - 18.09.7-0ubuntu1~16.04.6

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

References

• CVE-2020-15157

Related notices

• USN-4589-1