1. Ubuntu Security Notices
  2. USN-5242-1

USN-5242-1: Open vSwitch vulnerability

Publication date

20 January 2022

Overview

Open vSwitch could be made to hang or crash if it received specially crafted network traffic.

Releases

Packages

Details

It was discovered that Open vSwitch incorrectly handled certain fragmented
packets. A remote attacker could possibly use this issue to cause Open
vSwitch to consume resources, leading to a denial of service.

It was discovered that Open vSwitch incorrectly handled certain fragmented
packets. A remote attacker could possibly use this issue to cause Open
vSwitch to consume resources, leading to a denial of service.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
21.10 impish openvswitch-common –  2.16.0-0ubuntu2.1

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References

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