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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Nixos Calamares-Nixos-Extensions — versions <= 0.3.12
Weakness classification (CWE)
References
- github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-… (Mitigation, Vendor Advisory)
- github.com/osresearch/heads/issues/1348 (Exploit, Issue Tracking)
- github.com/vlinkz/calamares-nixos-extensions/commit/837ca4da5521a74d3b5ca6f7b88… (Patch)
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.