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Sicherheit: Mangelnde Rechteprüfung in DBus
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in DBus
ID: USN-4015-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 18.10, Ubuntu 19.04
Datum: Di, 11. Juni 2019, 22:17
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12749
Applikationen: D-BUS

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <acbe1f0c-ebd1-54ae-8ccc-5aea0895f13a@canonical.com>
Subject: [USN-4015-1] DBus vulnerability

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==========================================================================
Ubuntu Security Notice USN-4015-1
June 11, 2019

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

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/4015-1
CVE-2019-12749

Package Information:
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


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