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.

Classification

CVE ID: CVE-2023-36476

CVSS Base Severity: HIGH

CVSS Base Score: 7.9

Affected Products

Vendor: NixOS

Product: calamares-nixos-extensions

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.09% (probability of being exploited)

EPSS Percentile: 39.02% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24ww
https://github.com/osresearch/heads/issues/1348
https://github.com/vlinkz/calamares-nixos-extensions/commit/837ca4da5521a74d3b5ca6f7b88890a6713faa22

Timeline