CVE-2024-31420 Cnv: dos through repeatedly calling vm-dump-metrics until virt handler crashes
An attacker with guest access can crash the virtualization handler by repeatedly calling vm-dump-metrics, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-31420?
CVE-2024-31420 is a medium-severity vulnerability in Red Hat OpenShift Virtualization 4, published on 3 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A NULL pointer dereference flaw was found in KubeVirt. This flaw allows an attacker who has access to a virtual machine guest on a node with DownwardMetrics enabled to cause a denial of service by issuing a high number of calls to vm-dump-metrics --virtio and then deleting the virtual machine.
Weakness: CWE-476
Which versions are affected by CVE-2024-31420?
3 open source packages ship an affected version, including kubevirt.io/kubevirt.
| Package | Affected | Fixed in |
|---|---|---|
kubevirt.io/kubevirt Go | All versions | None |
kubevirt.io/kubevirt Go | All versions to 1.2.0 | None |
kubevirt.io/kubevirt Go | All versions to 1.2.0 | None |
How do I fix CVE-2024-31420?
No fix has been published for CVE-2024-31420 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-31420 being exploited?
There is no known exploitation of CVE-2024-31420 in the wild and no public exploit code.
Sources
Also known as GHSA-vjhf-6xfr-5p9g, GO-2024-2688, MINI-78qf-q7m4-q48f, MINI-mjvw-3jmr-g2q9.