Vulnerability · Published Apr 3, 2024 · Assigned by redhat
CVE-2024-31420Cnv: dos through repeatedly calling vm-dump-metrics until virt handler crashes
Medium 6.5
In plain English
A medium-severity null pointer dereference in cnv. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.6%top 48.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | kubevirt.io/kubevirt | no fix listed | GHSA-vjhf-6xfr-5p9g |
| Go | kubevirt.io/kubevirt | no fix listed | GO-2024-2688 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| cnv | 4.15.0 | |
| Red Hat | Red Hat OpenShift Virtualization 4 | see references |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2024-31420 vdb-entry, x_refsource_REDHAT
- RHBZ#2272951 issue-tracking, x_refsource_REDHAT