USN-4015-2: DBus vulnerability

dbus vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 14.04 ESM
Ubuntu 12.04 ESM

Summary

DBus could allow unintended access to services.

Software Description

dbus – simple interprocess messaging system

Details

USN-4015-1 fixed a vulnerability in DBus. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory 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 14.04 ESM: dbus – 1.6.18-0ubuntu4.5+esm1; libdbus-1-3 – 1.6.18-0ubuntu4.5+esm1
Ubuntu 12.04 ESM: dbus – 1.4.18-1ubuntu1.9; libdbus-1-3 – 1.4.18-1ubuntu1.9

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-4015-2: DBus vulnerability

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