Information on OpenSSH "regreSSHion" Vulnerability

Linode Blog Author

Jul 03, 2024

Linode

Linode Blog Author

Written by

Linode

Share

Akamai cloud computing is aware of the recently reported OpenSSH vulnerability dubbed “regreSSHion”.

We are currently evaluating the vulnerability and its impact to our infrastructure. As part of our early response security procedures, we will patch any affected infrastructure components. These patches will protect the underlying infrastructure that your compute instance resides on, and will not affect your compute instance’s stored data.

As part of Akamai’s shared security model, Akamai is actively verifying and updating all infrastructure systems to ensure our infrastructure is not using affected OpenSSH versions. In addition, we are advising customers to verify and update their compute instances (VMs) and LKE Containers to unaffected OpenSSH versions.

We advise customers with compute instances to perform the following mitigation steps.

Update OpenSSH to the Latest Version on Debian and Ubuntu

Run the following commands to update the OpenSSH version:

sudo apt update
sudo apt install --only-upgrade openssh-server openssh-client

This may ask you how to handle the sshd_config file if it has been changed from the version supplied in the distribution package. If so, make the selection to keep the old version.

Update OpenSSH to the Latest Version on CentOS

sudo yum update openssh-server
sudo yum update openssh-client

If you are running any other Linux distributions, follow steps outlined in their documentation to update OpenSSH.

Update OpenSSH for LKE Users

You may prepare a patch to your LKE nodes via DaemonSet or follow these steps to recycle your nodes and update the OpenSSH server.

We have updated our supported Linux distribution images with these fixes. Newly created compute instances will already include necessary patches for this vulnerability.

We recommend following optional, additional steps to harden SSH access.

Please open a ticket with our Support team in Cloud Manager if you have any questions about how this might impact you or your services on Akamai cloud computing.

Linode Blog Author

Jul 03, 2024

Linode

Linode Blog Author

Written by

Linode

Tags

Share

Related Blog Posts

Cloud
Akamai Cloud Is Built for What Cloud Has Become (Updated May 2026)
May 06, 2026
Explore Akamai Cloud’s Q1 2026 updates: New NVIDIA Blackwell GPUs, edge native Akamai Functions, and infrastructure built for real-time, distributed AI inference.
Cloud
AI Survey: 50% of Organizations Struggle to Maintain Latency at Scale
May 06, 2026
The Akamai State of AI Inference report captures real data from the field that describes how AI inference is being built and scaled in production today.
Cloud
AI Inference at the Edge: How Akamai’s Evolution Made It Possible
November 26, 2025
Read how Akamai, a pioneer in CDNs, is undergoing a profound strategic transformation into a diversified cloud and cybersecurity provider in the AI era.