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==========================================================================
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

Summary:

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

Software Description:
- fastd: Fast and Secure Tunneling Daemon

Details:

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.
(CVE-2020-27638)

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.

References:
  https://usn.ubuntu.com/4610-1
  CVE-2020-27638

Package Information:
  https://launchpad.net/ubuntu/+source/fastd/18-3ubuntu0.1


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