Leaky Vessels flaws allow hackers to escape Docker, runc containers

Leaky Vessels flaws allow hackers to escape Docker, runc containers

February 4, 2024 at 10:39AM

“Leaky Vessels” vulnerabilities were discovered by Snyk security researcher, allowing hackers to escape containers and access underlying system data. No active exploitation was found, but impacted parties are advised to apply available security updates promptly. The flaws affected runc and Buildkit, impacting Docker, Kubernetes, and more. Patched versions were released to mitigate the vulnerabilities. CISA also issued an alert for cloud system admins.

Based on the meeting notes, it is clear that a series of vulnerabilities, collectively referred to as “Leaky Vessels,” have been discovered by Snyk security researcher Rory McNamara, aiming to impact container infrastructures such as runc and Buildkit. The vulnerabilities enable attackers to escape containers and access data on the host operating system.

Key points to highlight from the meeting notes are:
1. Four vulnerabilities making up “Leaky Vessels” could allow unauthorized access to the host operating system.
2. The impacted parties have been notified, and security updates have been made available to address the vulnerabilities.
3. The Snyk team discovered the vulnerabilities and indicated no signs of active exploitation but emphasized the importance of updating systems promptly to mitigate potential risks.
4. The vulnerabilities primarily impact runc and Buildkit, widely used in container management systems like Docker and Kubernetes.
5. Coordinated efforts from Snyk, maintainers of affected components, companies like Docker, AWS, Google Cloud, and Ubuntu, and CISA have facilitated the release of security updates and alerts to address the flaws.

In summary, the “Leaky Vessels” vulnerabilities have been addressed through security updates and alerts, urging system admins to take appropriate actions to secure their systems.

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