Ubuntu Security Notice USN-653-1
14th 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 version:
- 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.