[USN-1576-1] DBus vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2012-10-04T00:00:00


========================================================================== Ubuntu Security Notice USN-1576-1 September 20, 2012

dbus vulnerability

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.04 LTS
  • Ubuntu 8.04 LTS


DBus could be made to run programs as an administrator.

Software Description: - dbus: simple interprocess messaging system


Sebastian Krahmer discovered that DBus incorrectly handled environment variables when running with elevated privileges. A local attacker could possibly exploit this flaw with a setuid binary and gain root privileges.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 LTS: dbus 1.4.18-1ubuntu1.1 libdbus-1-3 1.4.18-1ubuntu1.1

Ubuntu 11.10: dbus 1.4.14-1ubuntu1.1 libdbus-1-3 1.4.14-1ubuntu1.1

Ubuntu 11.04: dbus 1.4.6-1ubuntu6.2 libdbus-1-3 1.4.6-1ubuntu6.2

Ubuntu 10.04 LTS: dbus 1.2.16-2ubuntu4.5 libdbus-1-3 1.2.16-2ubuntu4.5

Ubuntu 8.04 LTS: dbus 1.1.20-1ubuntu3.7 libdbus-1-3 1.1.20-1ubuntu3.7

In general, a standard system update will make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-1576-1 CVE-2012-3524

Package Information: https://launchpad.net/ubuntu/+source/dbus/1.4.18-1ubuntu1.1 https://launchpad.net/ubuntu/+source/dbus/1.4.14-1ubuntu1.1 https://launchpad.net/ubuntu/+source/dbus/1.4.6-1ubuntu6.2 https://launchpad.net/ubuntu/+source/dbus/1.2.16-2ubuntu4.5 https://launchpad.net/ubuntu/+source/dbus/1.1.20-1ubuntu3.7

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