CVE-2024-31420: Kubevirt.io/kubevirt KubeVirt NULL Pointer Dereference Flaw Vulnerability

MODERATE
Advisory Identifier: GHSA-vjhf-6xfr-5p9g
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CVSS 6.5
CWE-476
Published
Advisory Summary

CVE-2024-31420 is a MODERATE (CVSS 6.5) kubevirt null pointer dereference flaw vulnerability (CWE-476: NULL Pointer Dereference) affecting Kubevirt.io/kubevirt libraries in the Go ecosystem. The issue involves kubevirt null pointer dereference flaw. Remediation is available in the latest vendor maintenance releases.

CVE-2024-31420 at a Glance

CVE Identifier CVE-2024-31420
GHSA Identifier GHSA-vjhf-6xfr-5p9g
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Kubevirt.io/kubevirt
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-31420

To remediate this vulnerability, upgrade all affected Kubevirt.io/kubevirt dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

kubevirt.io/kubevirt fixed: Latest secure release 
Upgrade kubevirt.io/kubevirt to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for kubevirt.io/kubevirt

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-31420, inspect your project dependencies for Kubevirt.io/kubevirt:

inspect dependencies for kubevirt.io/kubevirt

Analyze the terminal output to locate any version of Kubevirt.io/kubevirt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. In Kubevirt.io/kubevirt, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2024-31420 Affected Kubevirt.io/kubevirt Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
kubevirt.io/kubevirt
golang/kubevirt.io/kubevirt
Go
≤ 1.2.0

References

NVD — CVE-2024-31420 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-31420
Kubevirt.io/kubevirt Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2024-31420
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2272951
Kubevirt.io/kubevirt Source Repository REPOSITORY
https://github.com/kubevirt/kubevirt

Frequently Asked Questions

What is CVE-2024-31420?
CVE-2024-31420 is a security vulnerability in Kubevirt.io/kubevirt involving KubeVirt NULL pointer dereference flaw under CWE-476: NULL Pointer Dereference.
Which Kubevirt.io/kubevirt versions are affected?
Affected versions include releases prior to current release patches across affected packages: kubevirt.io/kubevirt.
What version fixes CVE-2024-31420?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is kubevirt.io/kubevirt affected?
Yes, kubevirt.io/kubevirt is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2024-31420?
CVE-2024-31420 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-31420?
CVE-2024-31420 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Go dependencies for CVE-2024-31420?
Run the dependency tree command: 'inspect dependencies for kubevirt.io/kubevirt'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vjhf-6xfr-5p9g",
  "modified" : "2024-04-03T18:46:15Z",
  "published" : "2024-04-03T15:30:42Z",
  "aliases" : [ "CVE-2024-31420" ],
  "summary" : "KubeVirt NULL pointer dereference flaw",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "kubevirt.io/kubevirt"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-31420"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2024-31420"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2272951"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubevirt/kubevirt"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-03T18:04:42Z",
    "nvd_published_at" : "2024-04-03T14:15:18Z"
  }
}