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Ubuntu Security Notice USN-4048-1

Ubuntu Security Notice USN-4048-1
Posted Jul 8, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4048-1 - Aleksa Sarai discovered that Docker was vulnerable to a directory traversal attack. An attacker could use this vulnerability to read and write arbitrary files on the host filesystem as root.

tags | advisory, arbitrary, root
systems | linux, ubuntu
advisories | CVE-2018-15664
SHA-256 | d442e2d42a4ccabd0196829e77953cf1b6942fd9ca5ffd601e88f573aed4c19a

Ubuntu Security Notice USN-4048-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4048-1
July 08, 2019

Docker vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Docker could be made to overwrite files as the administrator.

Software Description:
- docker.io: Linux container runtime

Details:

Aleksa Sarai discovered that Docker was vulnerable to a directory traversal
attack. An attacker could use this vulnerability to read and write arbitrary
files on the host filesystem as root.

Update instructions:

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

Ubuntu 19.04:
docker.io 18.09.7-0ubuntu1~19.04.4

Ubuntu 18.10:
docker.io 18.09.7-0ubuntu1~18.10.3

Ubuntu 18.04 LTS:
docker.io 18.09.7-0ubuntu1~18.04.3

Ubuntu 16.04 LTS:
docker.io 18.09.7-0ubuntu1~16.04.4

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
https://usn.ubuntu.com/4048-1
CVE-2018-15664, CVE-2019-5736

Package Information:
https://launchpad.net/ubuntu/+source/docker.io/18.09.7-0ubuntu1~19.04.4
https://launchpad.net/ubuntu/+source/docker.io/18.09.7-0ubuntu1~18.10.3
https://launchpad.net/ubuntu/+source/docker.io/18.09.7-0ubuntu1~18.04.3
https://launchpad.net/ubuntu/+source/docker.io/18.09.7-0ubuntu1~16.04.4
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