CVE-2024-43378
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.13%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-256
Referencias
- https://github.com/NixOS/calamares-nixos-extensions/pull/43
- https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24ww
- https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-vfxf-gpmj-2p25
- https://github.com/NixOS/nixpkgs/pull/331607
- https://github.com/NixOS/nixpkgs/pull/334252
JSON original (NVD)
Mostrar
{
"id": "CVE-2024-43378",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-43378",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2024-08-19T20:54:33.909326Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 1.4
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "NixOS",
"product": "calamares-nixos-extensions",
"versions": [
{
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"version": "< 0.3.17"
}
]
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
"cpes": [
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],
"vendor": "nixos",
"product": "calamares-nixos-extensions",
"versions": [
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"version": "0",
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"versionType": "custom"
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],
"published": "2024-08-16T02:15:17.877",
"references": [
{
"url": "https://github.com/NixOS/calamares-nixos-extensions/pull/43",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/NixOS/calamares-nixos-extensions/security/advisories/GHSA-3rvf-24q2-24ww",
"source": "security-advisories@github.com"
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{
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"source": "security-advisories@github.com"
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{
"url": "https://github.com/NixOS/nixpkgs/pull/331607",
"source": "security-advisories@github.com"
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{
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"source": "security-advisories@github.com"
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"vulnStatus": "Deferred",
"weaknesses": [
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"source": "security-advisories@github.com",
"description": [
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"lang": "en",
"value": "CWE-256"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "calamares-nixos-extensions proporciona la marca Calamares y módulos para NixOS, una distribución de GNU/Linux. Usuarios que instalaron NixOS a través del instalador gráfico que utilizaron la partición manual del disco para crear una configuración en la que el sistema se inició a través de BIOS heredado en lugar de UEFI; algunas particiones del disco están cifradas; pero las particiones que contienen `/` o `/boot` no están cifradas; tener su archivo de clave de cifrado de disco LUKS en texto plano, ya sea en `/crypto_keyfile.bin` o en un archivo CPIO adjunto a su initrd de NixOS. `nixos-install` no se ve afectado, ni tampoco las instalaciones UEFI, ni la configuración de partición automática predeterminada en los sistemas BIOS heredados. El problema se solucionó en calamares-nixos-extensions 0.3.17, que se incluyó en NixOS. Las imágenes del instalador actual para los canales NixOS 24.05 e inestable (24.11) no se ven afectadas. La corrección llegó a las 24.05 el 13 de agosto de 2024 a las 20:06:59 UTC y fue inestable el 15 de agosto de 2024 a las 09:00:20 UTC. Las imágenes del instalador descargadas antes de esas fechas pueden ser vulnerables. La mejor solución para los usuarios afectados probablemente sea hacer una copia de seguridad de sus datos y realizar una reinstalación completa. Sin embargo, el procedimiento de mitigación en GHSA-3rvf-24q2-24ww debería funcionar únicamente en el caso en el que `/` esté cifrado pero `/boot` no. Si `/` no está cifrado, entonces será necesario eliminar el archivo `/crypto_keyfile.bin` además de seguir los pasos de corrección del aviso anterior. Este problema es una regresión parcial de CVE-2023-36476/GHSA-3rvf-24q2-24ww, que era más grave al aplicarse a la configuración predeterminada en los sistemas BIOS."
}
],
"lastModified": "2026-06-17T07:50:54.870",
"sourceIdentifier": "security-advisories@github.com"
}