{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.3.17"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9dccb64cf9a3c1cf1d78f3ca9fdad7a004d9430b"
            }
          ],
          "repo": "https://github.com/nixos/calamares-nixos-extensions",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-256"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43378.json"
  },
  "details": "calamares-nixos-extensions provides Calamares branding and modules for NixOS, a distribution of GNU/Linux. Users who installed NixOS through the graphical installer who used manual disk partitioning to create a setup where the system was booted via legacy BIOS rather than UEFI; some disk partitions are encrypted; but the partitions containing either `/` or `/boot` are unencrypted; have their LUKS disk encryption key file in plain text either in `/crypto_keyfile.bin`, or in a CPIO archive attached to their NixOS initrd. `nixos-install` is not affected, nor are UEFI installations, nor was the default automatic partitioning configuration on legacy BIOS systems. The problem has been fixed in calamares-nixos-extensions 0.3.17, which was included in NixOS. The current installer images for the NixOS 24.05 and unstable (24.11) channels are unaffected. The fix reached 24.05 at 2024-08-13 20:06:59 UTC, and unstable at 2024-08-15 09:00:20 UTC. Installer images downloaded before those times may be vulnerable. The best solution for affected users is probably to back up their data and do a complete reinstallation. However, the mitigation procedure in GHSA-3rvf-24q2-24ww should work solely for the case where `/` is encrypted but `/boot` is not. If `/` is unencrypted, then the `/crypto_keyfile.bin` file will need to be deleted in addition to the remediation steps in the previous advisory. This issue is a partial regression of CVE-2023-36476 / GHSA-3rvf-24q2-24ww, which was more severe as it applied to the default configuration on BIOS systems.",
  "id": "CVE-2024-43378",
  "modified": "2026-04-01T23:09:57.832102633Z",
  "published": "2024-08-15T23:53:07.103Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43378.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24ww"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-vfxf-gpmj-2p25"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43378"
    },
    {
      "type": "FIX",
      "url": "https://github.com/NixOS/calamares-nixos-extensions/pull/43"
    },
    {
      "type": "FIX",
      "url": "https://github.com/NixOS/nixpkgs/pull/331607"
    },
    {
      "type": "FIX",
      "url": "https://github.com/NixOS/nixpkgs/pull/334252"
    }
  ],
  "related": [
    "GHSA-3rvf-24q2-24ww",
    "GHSA-vfxf-gpmj-2p25"
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "calamares-nixos-extensions LUKS keyfile exposure regression on legacy BIOS systems"
}