Podman Vulnerability Leads to Memory-Based Denial of Service

CVE-2024-3056

What is CVE-2024-3056?

A vulnerability exists in Podman that can be exploited by attackers to create specially crafted containers configured to share IPC resources with other containers. This flaw can lead to the creation of excessive IPC resources in the /dev/shm directory, causing the system to exhaust its memory. When a malicious container is initiated, it may repeatedly consume memory until it is out-of-memory killed. However, the IPC resources it generated remain tied to the IPC namespace, which persists as long as at least one non-malicious container holds the namespace open. By automatically restarting the malicious container, attackers can continuously leverage this vulnerability, leading to significant memory depletion and potential denial of service for the system.

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