USN-4398-1: DBus vulnerability

Published Jun 16, 2020
·
Updated

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.

Affected Software

16 affected componentsFixes available
All of the following
ubuntu/dbus<1.12.16-2ubuntu2.1
1.12.16-2ubuntu2.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/libdbus-1-3<1.12.16-2ubuntu2.1
1.12.16-2ubuntu2.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/dbus<1.12.14-1ubuntu2.1
1.12.14-1ubuntu2.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/libdbus-1-3<1.12.14-1ubuntu2.1
1.12.14-1ubuntu2.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/dbus<1.12.2-1ubuntu1.2
1.12.2-1ubuntu1.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/libdbus-1-3<1.12.2-1ubuntu1.2
1.12.2-1ubuntu1.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/dbus<1.10.6-1ubuntu3.6
1.10.6-1ubuntu3.6
Ubuntu Ubuntu=16.04
All of the following
ubuntu/libdbus-1-3<1.10.6-1ubuntu3.6
1.10.6-1ubuntu3.6
Ubuntu Ubuntu=16.04

Event History

Jun 16, 2020
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID for the DBus vulnerability?

The vulnerability ID for the DBus vulnerability is USN-4398-1.

2

What is the impact of the DBus vulnerability?

The DBus vulnerability can allow a local attacker to cause DBus to crash, resulting in a denial of service.

3

Which software versions and packages are affected by the DBus vulnerability?

The DBus vulnerability affects Ubuntu 20.04 with dbus package version 1.12.16-2ubuntu2.1, Ubuntu 20.04 with libdbus-1-3 package version 1.12.16-2ubuntu2.1, Ubuntu 19.10 with dbus package version 1.12.14-1ubuntu2.1, Ubuntu 19.10 with libdbus-1-3 package version 1.12.14-1ubuntu2.1, Ubuntu 18.04 with dbus package version 1.12.2-1ubuntu1.2, Ubuntu 18.04 with libdbus-1-3 package version 1.12.2-1ubuntu1.2, Ubuntu 16.04 with dbus package version 1.10.6-1ubuntu3.6, and Ubuntu 16.04 with libdbus-1-3 package version 1.10.6-1ubuntu3.6.

4

How can I fix the DBus vulnerability?

To fix the DBus vulnerability, you need to update the affected packages to the specified remedy versions provided by Ubuntu.

5

Where can I find more information about the DBus vulnerability?

You can find more information about the DBus vulnerability on the Ubuntu security website and the provided references.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203