GLSA 201909-08: D-Bus: Authentication bypass

Severity:normal
Title:D-Bus: Authentication bypass
Date:09/08/2019
Bugs: #687900
ID:201909-08

Synopsis

An authentication bypass was discovered in D-Bus.

Background

D-Bus is a message bus system which processes can use to talk to each other.

Affected packages

Package Vulnerable Unaffected Architecture(s)
sys-apps/dbus < 1.12.16 >= 1.12.16 All supported architectures

Description

It was discovered that a local attacker could manipulate symbolic links in their own home directory to bypass authentication and connect to a DBusServer with elevated privileges.

Impact

A local attacker can bypass authentication mechanisms and elevate privileges.

Workaround

There is no known workaround at this time.

Resolution

All D-Bus users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.16"
    

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201909-08.xml

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.

Thank you!