Ubuntu Security Notice USN-221-1
1st December, 2005
ipsec-tools vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.10
- Ubuntu 5.04
- Ubuntu 4.10
Details
The Oulu University Secure Programming Group discovered a remote
Denial of Service vulnerability in the racoon daemon. When the daemon
is configured to use aggressive mode, then it did not check whether
the peer sent all required payloads during the IKE negotiation phase.
A malicious IPsec peer could exploit this to crash the racoon daemon.
Please be aware that racoon is not officially supported by Ubuntu, the
package is in the 'universe' component of the archive.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.10:
- racoon
- Ubuntu 5.04:
- racoon
- Ubuntu 4.10:
- racoon
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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