USN-4015-1: DBus vulnerability

Publication date

11 June 2019

Overview

DBus could allow unintended access to services.


Packages

  • dbus - simple interprocess messaging system

Details

Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1
authentication. A local attacker could possibly use this issue to bypass
authentication and connect to DBus servers with elevated privileges.

Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1
authentication. A local attacker could possibly use this issue to bypass
authentication and connect to DBus servers with elevated privileges.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.04 disco dbus –  1.12.12-1ubuntu1.1
libdbus-1-3 –  1.12.12-1ubuntu1.1
18.10 cosmic dbus –  1.12.10-1ubuntu2.1
libdbus-1-3 –  1.12.10-1ubuntu2.1
18.04 bionic dbus –  1.12.2-1ubuntu1.1
libdbus-1-3 –  1.12.2-1ubuntu1.1
16.04 xenial dbus –  1.10.6-1ubuntu3.4
libdbus-1-3 –  1.10.6-1ubuntu3.4

Reduce your security exposure

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Have additional questions?

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