GLSA 202012-17: D-Bus: Denial of service

http://security.gentoo.org/

Severity:	low
Title:	D-Bus: Denial of service
Date:	12/23/2020
Bugs:	#755392
ID:	202012-17

Synopsis

A local Denial of Service vulnerability 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	< 1.12.20	>= 1.12.20	All supported architectures

Description

It was discovered that D-Bus did not properly handle the situation when two usernames have the same numeric UID.

Impact

An attacker could possibly cause a Denial of Service condition or trigger other undefined behavior, possibly including incorrect authorization decisions.

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-1.12.20"

References

dbus 1.12.20 security update announcement

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202012-17.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.