CVE-2024-3056: fedora DoS — Fix

Description

A flaw was found in Podman. This issue may allow an attacker to create a specially crafted container that, when configured to share the same IPC with at least one other container, can create a large number of IPC resources in /dev/shm. The malicious container will continue to exhaust resources until it is out-of-memory (OOM) killed. While the malicious container's cgroup will be removed, the IPC resources it created are not. Those resources are tied to the IPC namespace that will not be removed until all containers using it are stopped, and one non-malicious container is holding the namespace open. The malicious container is restarted, either automatically or by attacker control, repeating the process and increasing the amount of memory consumed. With a container configured to restart always, such as `podman run --restart=always`, this can result in a memory-based denial of service of the system.

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CVSS v3.1 Score

7.7

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
podman_project	podman	< 5.2.0
redhat	openshift_container_platform	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
fedoraproject	fedora	All

References

Advisories & Patches

https://access.redhat.com/security/cve/CVE-2024-3056

Other References

https://bugzilla.redhat.com/show_bug.cgi?id=2270717 https://security.netapp.com/advisory/ntap-20241227-0002/

Frequently Asked Questions

What is CVE-2024-3056? +

A flaw was found in Podman. This issue may allow an attacker to create a specially crafted container that, when configured to share the same IPC with at least one other container, can create a large number of IPC resources in /dev/shm. The malicious container will continue to exhaust resources until it is out-of-memory (OOM) killed. While the malicious container's cgroup will be removed, the IPC resources it created are not. Those resources are tied to the IPC namespace that will not be removed until all containers using it are stopped, and one non-malicious container is holding the namespace open. The malicious container is restarted, either automatically or by attacker control, repeating the process and increasing the amount of memory consumed. With a container configured to restart always, such as `podman run --restart=always`, this can result in a memory-based denial of service of the system. It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2024-3056? +

CVE-2024-3056 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-3056? +

CVE-2024-3056 affects products from fedoraproject, podman_project, redhat, specifically: enterprise_linux, fedora, openshift_container_platform, podman. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-3056? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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