- Vulnerability/
- USN-4015-1
USN-4015-1: DBus vulnerability
First published: Tue Jun 11 2019(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/dbus | <1.12.12-1ubuntu1.1 | 1.12.12-1ubuntu1.1 |
| =19.04 | ||
| All of | ||
| ubuntu/libdbus-1-3 | <1.12.12-1ubuntu1.1 | 1.12.12-1ubuntu1.1 |
| =19.04 | ||
| All of | ||
| ubuntu/dbus | <1.12.10-1ubuntu2.1 | 1.12.10-1ubuntu2.1 |
| =18.10 | ||
| All of | ||
| ubuntu/libdbus-1-3 | <1.12.10-1ubuntu2.1 | 1.12.10-1ubuntu2.1 |
| =18.10 | ||
| All of | ||
| ubuntu/dbus | <1.12.2-1ubuntu1.1 | 1.12.2-1ubuntu1.1 |
| =18.04 | ||
| All of | ||
| ubuntu/libdbus-1-3 | <1.12.2-1ubuntu1.1 | 1.12.2-1ubuntu1.1 |
| =18.04 | ||
| All of | ||
| ubuntu/dbus | <1.10.6-1ubuntu3.4 | 1.10.6-1ubuntu3.4 |
| =16.04 | ||
| All of | ||
| ubuntu/libdbus-1-3 | <1.10.6-1ubuntu3.4 | 1.10.6-1ubuntu3.4 |
| =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2019-12749
- https://ubuntu.com/security/notices/USN-4015-2
- https://launchpad.net/ubuntu/+source/dbus/1.12.12-1ubuntu1.1
- https://launchpad.net/ubuntu/+source/dbus/1.12.10-1ubuntu2.1
- https://launchpad.net/ubuntu/+source/dbus/1.12.2-1ubuntu1.1
- https://launchpad.net/ubuntu/+source/dbus/1.10.6-1ubuntu3.4
- https://ubuntu.com/security/notices/USN-4015-1 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is USN-4015-1.
How does the vulnerability affect DBus servers?
The vulnerability allows a local attacker to bypass authentication and connect to DBus servers with elevated privileges.
What is the affected software?
The affected software includes dbus package versions 1.12.12-1ubuntu1.1, libdbus-1-3 package versions 1.12.12-1ubuntu1.1, dbus package versions 1.12.10-1ubuntu2.1, libdbus-1-3 package versions 1.12.10-1ubuntu2.1, dbus package versions 1.12.2-1ubuntu1.1, libdbus-1-3 package versions 1.12.2-1ubuntu1.1, dbus package versions 1.10.6-1ubuntu3.4, and libdbus-1-3 package versions 1.10.6-1ubuntu3.4 on Ubuntu 19.04, 18.10, 18.04, and 16.04.
How can I fix the vulnerability?
To fix the vulnerability, update the affected software to the recommended versions - dbus package 1.12.12-1ubuntu1.1 and libdbus-1-3 package 1.12.12-1ubuntu1.1 for Ubuntu 19.04.
Where can I find more information about this vulnerability?
More information about this vulnerability can be found in the Ubuntu security advisories: [CVE-2019-12749](https://ubuntu.com/security/CVE-2019-12749) and [USN-4015-2](https://ubuntu.com/security/notices/USN-4015-2).
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