GLSA 202008-15: Docker: Information disclosure
Severity: | normal |
Title: | Docker: Information disclosure |
Date: | 08/26/2020 |
Bugs: |
|
ID: | 202008-15 |
Synopsis
A flaw in Docker allowed possible information leakage.Background
Docker is the world’s leading software containerization platform.
Affected packages
Package | Vulnerable | Unaffected | Architecture(s) |
---|---|---|---|
app-emulation/docker | < 19.03.12 | >= 19.03.12 | All supported architectures |
Description
It was found that Docker created network bridges which by default accept IPv6 router advertisements.
Impact
An attacker who gained access to a container with CAP_NET_RAW capability may be able to to spoof router advertisements, resulting in information disclosure or denial of service.
Workaround
There is no known workaround at this time.
Resolution
All Docker users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/docker-19.03.12"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.