[USN-4610-1] fastd vulnerability

Emilia Torino emilia.torino at canonical.com
Thu Oct 29 13:51:40 UTC 2020

Ubuntu Security Notice USN-4610-1
October 29, 2020

fastd vulnerability

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

- Ubuntu 20.04 LTS


fastd could be made to remotely exhaust resources if it received
specially crafted packets.

Software Description:
- fastd: Fast and Secure Tunneling Daemon


It was discovered that fastd did not properly handle receive buffers
under certain circumstances. A remote attacker could possibly use this
issue to cause a memory leak, resulting in a denial of service.

Update instructions:

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

Ubuntu 20.04 LTS:
  fastd                           18-3ubuntu0.1

In general, a standard system update will make all the necessary changes.


Package Information:

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