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CVE-2023-36476

7.9 · HIGH

calamares-nixos-extensions provides Calamares branding and modules for NixOS, a distribution of GNU/Linux.

Published Jun 29, 2023CWE-200EPSS 0.26%

Overview

CVE-2023-36476 is a high-severity vulnerability. It was published on June 29, 2023 and has a CVSS 3.1 base score of 7.9 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

calamares-nixos-extensions provides Calamares branding and modules for NixOS, a distribution of GNU/Linux. Users of calamares-nixos-extensions version 0.3.12 and prior who installed NixOS through the graphical calamares installer, with an unencrypted `/boot`, on either non-UEFI systems or with a LUKS partition different from `/` have their LUKS key file in `/boot` as a plaintext CPIO archive attached to their NixOS initrd. A patch is available and anticipated to be part of version 0.3.13 to backport to NixOS 22.11, 23.05, and unstable channels. Expert users who have a copy of their data may, as a workaround, re-encrypt the LUKS partition(s) themselves.

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/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24wwGitHubgithub.com/osresearch/heads/issues/1348GitHubgithub.com/vlinkz/calamares-nixos-extensions/commit/837ca4da5521a74d3b5ca6f7b88890a6713faa22GitHubgithub.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24wwGitHubgithub.com/osresearch/heads/issues/1348GitHubgithub.com/vlinkz/calamares-nixos-extensions/commit/837ca4da5521a74d3b5ca6f7b88890a6713faa22

How CyberStrike helps

Frequently asked questions

What is CVE-2023-36476?

CVE-2023-36476 is a high-severity vulnerability. It was published on June 29, 2023 and has a CVSS 3.1 base score of 7.9 (HIGH).

How severe is CVE-2023-36476?

This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. 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-2023-36476?

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-2023-36476?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-36476 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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