USN-4015-1: DBus vulnerability
dbus vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary
DBus could allow unintended access to services.
Software Description
- 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.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 19.04
- dbus – 1.12.12-1ubuntu1.1
- libdbus-1-3 – 1.12.12-1ubuntu1.1
- Ubuntu 18.10
- dbus – 1.12.10-1ubuntu2.1
- libdbus-1-3 – 1.12.10-1ubuntu2.1
- Ubuntu 18.04 LTS
- dbus – 1.12.2-1ubuntu1.1
- libdbus-1-3 – 1.12.2-1ubuntu1.1
- Ubuntu 16.04 LTS
- dbus – 1.10.6-1ubuntu3.4
- libdbus-1-3 – 1.10.6-1ubuntu3.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
Source: USN-4015-1: DBus vulnerability
