What is CVE-2023-36476?

CVE-2023-36476 is a high-severity vulnerability in Nixos Calamares-Nixos-Extensions, classified under Information Disclosure. CVSS score: 7.9/10. Published 2023-06-29.

How severe is CVE-2023-36476?

High severity. CVSS v3 base score is 7.9 out of 10.

Information disclosure in Nixos Calamares-Nixos-Extensions

CVE-2023-36476

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.

Vulnerability class: Information Disclosure

EPSS: 0.003 (18.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N.

Affected products

Nixos Calamares-nixos-extensions — versions <= 0.3.12

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-36476?: CVE-2023-36476 is a high-severity vulnerability in Nixos Calamares-Nixos-Extensions, classified under Information Disclosure. CVSS score: 7.9/10. Published 2023-06-29.
How severe is CVE-2023-36476?: High severity. CVSS v3 base score is 7.9 out of 10.