Ubuntu Security Notice USN-459-1
14th May, 2007
pptpd vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
Details
A flaw was discovered in the PPTP tunnel server. Remote attackers could
send a specially crafted packet and disrupt established PPTP tunnels,
leading to a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.04:
- pptpd 1.3.0-2ubuntu2.1
- Ubuntu 6.10:
- pptpd 1.3.0-1ubuntu1.1
- Ubuntu 6.06 LTS:
- pptpd 1.2.3-1ubuntu0.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.