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Ubuntu 20.10 USN-4720-1 Important Nginx Security Update Advisory

ubuntu
Calendar Grey February 2, 2021
Dist Ubuntu Esm H88
This advisory warns of a critical vulnerability in FastD on multiple Ubuntu versions, risking potential denial of service due to crafted input data
fastd could be made to denial of service it if received a specially crafted input.

Summary

fastd could be made to denial of service it if received a specially crafted input.

Software Description:

- fastd: Fast and Secure Tunneling Daemon

Details:

It was discovered that fastd incorrectly handled certain packets.

An attacker could possibly use this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service security issue software update Ubuntu moderate severity advisory ubuntu fastd

Update Instructions

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

Ubuntu 20.10:
  fastd                           19-3ubuntu0.1

Ubuntu 18.04 LTS:
  fastd                           18-3ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  fastd                           17-4ubuntu0.1

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

References

CVE-2020-27638

Severity
important
Lowest
Low
Medium
High
Critical

February 02, 2021

Topics%20covered

Topics Covered

security advisory denial of service security issue software update Ubuntu moderate severity advisory ubuntu fastd

Package Information

https://launchpad.net/ubuntu/+source/fastd/19-3ubuntu0.1
https://launchpad.net/ubuntu/+source/fastd/18-3ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/fastd/17-4ubuntu0.1

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