Alerts This Week
Warning Icon 1 1,213
Alerts This Week
Warning Icon 1 1,213

Ubuntu 25.04: Cloud-Init Critical Root Access Issues USN-7677-1

ubuntu
Calendar Grey July 30, 2025
Dist Ubuntu Esm H88
Ubuntu has rolled out vital security patches for cloud-init to fix serious vulnerabilities affecting various versions, urging users to update swiftly for enhanced protection
Several security issues were fixed in cloud-init.

Summary

Several security issues were fixed in cloud-init.

Software Description:

- cloud-init: initialization and customization tool for cloud instances

Details:

Harry Sintonen discovered that the hotplugd socket in cloud-init was world

writable. An attacker could possibly use this issue to send hotplug-hook

commands. (CVE-2024-11584)

It was discovered that cloud-init granted root access to a hardcoded URL

with a local IP address when a non-x86 platform is detected. An attacker

could possibly impersonate an OpenStack endpoint and provide root

configuration data. (CVE-2024-6174)

Topics%20covered

Topics Covered

security advisory critical Ubuntu root access authentication bypass cloud-init

Update Instructions

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

Ubuntu 25.04
  cloud-init                      25.1.4-0ubuntu0~25.04.1
  cloud-init-base                 25.1.4-0ubuntu0~25.04.1

Ubuntu 24.04 LTS
  cloud-init                      25.1.4-0ubuntu0~24.04.1

Ubuntu 22.04 LTS
  cloud-init                      25.1.4-0ubuntu0~22.04.1

Ubuntu 20.04 LTS
  cloud-init                      24.4.1-0ubuntu0~20.04.3+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  cloud-init                      23.1.2-0ubuntu0~18.04.1+esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  cloud-init                      21.1-19-gbad84ad4-0ubuntu1~16.04.4+esm2
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7677-1

CVE-2024-11584, CVE-2024-6174

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7677-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu root access authentication bypass cloud-init

Package Information

https://launchpad.net/ubuntu/+source/cloud-init/25.1.4-0ubuntu0~25.04.1
https://launchpad.net/ubuntu/+source/cloud-init/25.1.4-0ubuntu0~24.04.1
https://launchpad.net/ubuntu/+source/cloud-init/25.1.4-0ubuntu0~22.04.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here