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`calamares-nixos-extensions` LUKS keyfile exposure

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-36476
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 22:14 UTC · Revision 1

Source evidence

`calamares-nixos-extensions` LUKS keyfile exposure

core-osv · Original source

Published 29 Jun 2023, 00:18 UTC

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.

osv:CVE-2023-36476
Complete source record
{
  "id": "5b94eb6cba5ff6147ac5da2091b4105497a51486e16ae9aac4f8caa53b26503d",
  "url": "https://osv.dev/vulnerability/CVE-2023-36476",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "`calamares-nixos-extensions` LUKS keyfile exposure",
    "summary": "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.",
    "evidence": "osv:CVE-2023-36476",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-36476",
      "aliases": [
        "CVE-2023-36476",
        "GHSA-3rvf-24q2-24ww"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nixos/calamares-nixos-extensions",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d06ae23dbd71305e82d41778daa7dbb6ece124dc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.3.12"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:nixos:calamares-nixos-extensions:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.3.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/vlinkz/calamares-nixos-extensions",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "837ca4da5521a74d3b5ca6f7b88890a6713faa22"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "837ca4da5521a74d3b5ca6f7b88890a6713faa22"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.3.12",
            "0.3.11",
            "0.3.10",
            "0.3.9",
            "0.3.8",
            "0.3.7",
            "0.3.6",
            "0.3.5",
            "0.3.4",
            "0.3.3",
            "0.3.2",
            "0.3.1",
            "0.3.0",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "0.2.0",
            "0.1.1",
            "0.1.0",
            "0.0.3",
            "0.0.2",
            "0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-36476.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.926858100Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36476.json",
        "https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24ww",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-36476",
        "https://github.com/osresearch/heads/issues/1348",
        "https://github.com/vlinkz/calamares-nixos-extensions/commit/837ca4da5521a74d3b5ca6f7b88890a6713faa22"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36476.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-36476",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507509,
  "published_at": "2023-06-29T00:18:42.532+00:00"
}