1. Ubuntu Security Notices
  2. USN-4398-1

USN-4398-1: DBus vulnerability

Publication date

16 June 2020

Overview

DBus could be made to crash if it received specially crafted input.

Releases

Packages

  • dbus - simple interprocess messaging system

Details

Kevin Backhouse discovered that DBus incorrectly handled file descriptors.
A local attacker could possibly use this issue to cause DBus to crash,
resulting in a denial of service.

Kevin Backhouse discovered that DBus incorrectly handled file descriptors.
A local attacker could possibly use this issue to cause DBus to crash,
resulting in a denial of service.

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
20.04 focal dbus –  1.12.16-2ubuntu2.1
libdbus-1-3 –  1.12.16-2ubuntu2.1
19.10 eoan dbus –  1.12.14-1ubuntu2.1
libdbus-1-3 –  1.12.14-1ubuntu2.1
18.04 bionic dbus –  1.12.2-1ubuntu1.2
libdbus-1-3 –  1.12.2-1ubuntu1.2
16.04 xenial dbus –  1.10.6-1ubuntu3.6
libdbus-1-3 –  1.10.6-1ubuntu3.6

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References

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