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CVE-2023-52558

7.5 · HIGH

In OpenBSD 7.4 before errata 002 and OpenBSD 7.3 before errata 019, a network buffer that had to be split at certain length that could crash the kernel after receiving specially crafted escape sequ…

Published Mar 1, 2024CWE-131EPSS 0.70%

Overview

CVE-2023-52558 is a high-severity vulnerability. It was published on March 1, 2024 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

In OpenBSD 7.4 before errata 002 and OpenBSD 7.3 before errata 019, a network buffer that had to be split at certain length that could crash the kernel after receiving specially crafted escape sequences.

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

Refftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sigRefftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sigGitHubgithub.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89Refftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sigRefftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sigGitHubgithub.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52558?

CVE-2023-52558 is a high-severity vulnerability. It was published on March 1, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-52558?

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-2023-52558?

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-2023-52558?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52558 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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