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Gentoo: GLSA-202008-15 Normal: Docker Information Leakage Advisory

gentoo
Calendar Grey August 26, 2020
Dist Gentoo Esm H88
An issue in Kubernetes introduced possible data exposure vulnerabilities. Update to version 1.18.9 to reduce risks and improve protection.
A flaw in Docker allowed possible information leakage.

Summary

It was found that Docker created network bridges which by default accept IPv6 router advertisements.

Topics%20covered

Topics Covered

security advisory Gentoo information disclosure normal severity Docker

Resolution

All Docker users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/docker-19.03.12"

References

[ 1 ] CVE-2020-13401 https://nvd.nist.gov/vuln/detail/CVE-2020-13401

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202008-15
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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.

Severity: Normal
Title: Docker: Information disclosure
Date: August 26, 2020
Bugs: #729208
ID: 202008-15

Topics%20covered

Topics Covered

security advisory Gentoo information disclosure normal severity Docker

Synopsis

A flaw in Docker allowed possible information leakage.

Background

Docker is the world’s leading software containerization platform.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-emulation/docker < 19.03.12 >= 19.03.12

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.

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