Ubuntu Security Notice USN-740-1
17th March, 2009
nss, firefox vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 7.10
- Ubuntu 6.06 LTS
Software description
- firefox
- nss
Details
The MD5 algorithm is known not to be collision resistant. This update
blacklists the proof of concept rogue certificate authority as discussed
in http://www.win.tue.nl/hashclash/rogue-ca/.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 8.10:
- libnss3-1d 3.12.0.3-0ubuntu5.8.10.1
- Ubuntu 8.04 LTS:
- libnss3-0d 3.12.0.3-0ubuntu0.8.04.5
- libnss3-1d 3.12.0.3-0ubuntu0.8.04.5
- Ubuntu 7.10:
- libnss3-0d 3.11.5-3ubuntu0.7.10.2
- Ubuntu 6.06 LTS:
- libnss3 1.5.dfsg+1.5.0.15~prepatch080614k-0ubuntu2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart your session to
effect the necessary changes.