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CVE-2022-23092

8.8 · HIGH

The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents.

Published Feb 15, 2024CWE-787EPSS 0.65%

Overview

CVE-2022-23092 is a high-severity vulnerability. It was published on February 15, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents. The missing check means that the receipt of a specially crafted message will cause lib9p to overwrite unrelated memory.

The bug can be triggered by a malicious bhyve guest kernel to overwrite memory in the bhyve(8) process. This could potentially lead to user-mode code execution on the host, subject to bhyve's Capsicum sandbox.

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

Refsecurity.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.ascRefsecurity.netapp.com/advisory/ntap-20240415-0009/Refsecurity.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.ascRefsecurity.netapp.com/advisory/ntap-20240415-0009/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-23092?

CVE-2022-23092 is a high-severity vulnerability. It was published on February 15, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-23092?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-23092?

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-2022-23092?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-23092 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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