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CVE-2024-4418

6.2 · MEDIUM

A race condition leading to a stack use-after-free flaw was found in libvirt.

Published May 8, 2024CWE-562EPSS 0.49%

Overview

CVE-2024-4418 is a medium-severity vulnerability. It was published on May 8, 2024 and has a CVSS 3.1 base score of 6.2 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A race condition leading to a stack use-after-free flaw was found in libvirt. Due to a bad assumption in the virNetClientIOEventLoop() method, the `data` pointer to a stack-allocated virNetClientIOEventData structure ended up being used in the virNetClientIOEventFD callback while the data pointer's stack frame was concurrently being "freed" when returning from virNetClientIOEventLoop(). The 'virtproxyd' daemon can be used to trigger requests. If libvirt is configured with fine-grained access control, this issue, in theory, allows a user to escape their otherwise limited access. This flaw allows a local, unprivileged user to access virtproxyd without authenticating. Remote users would need to authenticate before they could access it.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2024:4351Refaccess.redhat.com/errata/RHSA-2024:4432Refaccess.redhat.com/errata/RHSA-2024:4757Refaccess.redhat.com/security/cve/CVE-2024-4418Refbugzilla.redhat.com/show_bug.cgi?id=2278616Refaccess.redhat.com/errata/RHSA-2024:4351Refaccess.redhat.com/errata/RHSA-2024:4432Refaccess.redhat.com/errata/RHSA-2024:4757Refaccess.redhat.com/security/cve/CVE-2024-4418Refbugzilla.redhat.com/show_bug.cgi?id=2278616

How CyberStrike helps

Frequently asked questions

What is CVE-2024-4418?

CVE-2024-4418 is a medium-severity vulnerability. It was published on May 8, 2024 and has a CVSS 3.1 base score of 6.2 (MEDIUM).

How severe is CVE-2024-4418?

This vulnerability has a CVSS 3.1 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-4418?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-4418?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-4418 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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