USN-653-1: D-Bus vulnerabilities

14 October 2008

dbus vulnerabilities

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

  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.06 LTS

Software Description

  • dbus

Details

Havoc Pennington discovered that the D-Bus daemon did not correctly validate certain security policies. If a local user sent a specially crafted D-Bus request, they could bypass security policies that had a “send_interface” defined. (CVE-2008-0595)

It was discovered that the D-Bus library did not correctly validate certain corrupted signatures. If a local user sent a specially crafted D-Bus request, they could crash applications linked against the D-Bus library, leading to a denial of service. (CVE-2008-3834)

Update instructions

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

Ubuntu 8.04 LTS
libdbus-1-3 - 1.1.20-1ubuntu3.1
Ubuntu 7.10
libdbus-1-3 - 1.1.1-3ubuntu4.2
Ubuntu 7.04
libdbus-1-3 - 1.0.2-1ubuntu4.2
Ubuntu 6.06 LTS
libdbus-1-2 - 0.60-6ubuntu8.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to reboot your computer to effect the necessary changes.

References