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CVE-2022-42330

7.5 · HIGH

Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g.

Published Jan 26, 2023EPSS 1.36%

Overview

CVE-2022-42330 is a high-severity vulnerability. It was published on January 26, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.

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.gentoo.org/glsa/202402-07Refxenbits.xenproject.org/xsa/advisory-425.txtRefxenbits.xen.org/xsa/advisory-425.htmlRefsecurity.gentoo.org/glsa/202402-07Refxenbits.xenproject.org/xsa/advisory-425.txt

How CyberStrike helps

Frequently asked questions

What is CVE-2022-42330?

CVE-2022-42330 is a high-severity vulnerability. It was published on January 26, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-42330?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2022-42330?

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-2022-42330?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-42330 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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