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CVE-2022-23523

4.0 · MEDIUM

In versions prior to 0.8.1, the linux-loader crate uses the offsets and sizes provided in the ELF headers to determine the offsets to read from.

Published Dec 13, 2022CWE-119EPSS 0.22%

Overview

CVE-2022-23523 is a medium-severity vulnerability. It was published on December 13, 2022 and has a CVSS 3.1 base score of 4.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.0, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In versions prior to 0.8.1, the linux-loader crate uses the offsets and sizes provided in the ELF headers to determine the offsets to read from. If those offsets point beyond the end of the file this could lead to Virtual Machine Monitors using the `linux-loader` crate entering an infinite loop if the ELF header of the kernel they are loading was modified in a malicious manner. This issue has been addressed in 0.8.1. The issue can be mitigated by ensuring that only trusted kernel images are loaded or by verifying that the headers do not point beyond the end of the file.

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

GitHubgithub.com/rust-vmm/linux-loader/pull/125GitHubgithub.com/rust-vmm/linux-loader/security/advisories/GHSA-52h2-m2cf-9jh6GitHubgithub.com/rust-vmm/linux-loader/pull/125GitHubgithub.com/rust-vmm/linux-loader/security/advisories/GHSA-52h2-m2cf-9jh6

How CyberStrike helps

Frequently asked questions

What is CVE-2022-23523?

CVE-2022-23523 is a medium-severity vulnerability. It was published on December 13, 2022 and has a CVSS 3.1 base score of 4.0 (MEDIUM).

How severe is CVE-2022-23523?

This vulnerability has a CVSS 3.1 base score of 4.0, 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-2022-23523?

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-2022-23523?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-23523 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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