CVE-2024-27297

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A fixed-output derivations on Linux can send file descriptors to files in the Nix store to another program running on the host (or another fixed-output derivation) via Unix domain sockets in the abstract namespace. This allows to modify the output of the derivation, after Nix has registered the path as \"valid\" and immutable in the Nix database. In particular, this allows the output of fixed-output derivations to be modified from their expected content. This issue has been addressed in versions 2.3.18 2.18.2 2.19.4 and 2.20.5. Users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "Nix es un administrador de paquetes para Linux y otros sistemas Unix. Una derivaci\u00f3n de salida fija en Linux puede enviar descriptores de archivos en el almac\u00e9n Nix a otro programa que se ejecuta en el host (u otra derivaci\u00f3n de salida fija) a trav\u00e9s de sockets de dominio Unix en el espacio de nombres abstracto. Esto permite modificar la salida de la derivaci\u00f3n, despu\u00e9s de que Nix haya registrado la ruta como \"v\u00e1lida\" e inmutable en la base de datos de Nix. En particular, esto permite modificar la salida de derivaciones de salida fija respecto de su contenido esperado. Este problema se solucion\u00f3 en las versiones 2.3.18 2.18.2 2.19.4 y 2.20.5. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."}], "id": "CVE-2024-27297", "lastModified": "2026-06-17T07:19:35.820", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-27297", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-03-12T18:38:57.385291Z", "version": "2.0.3"}}]}, "published": "2024-03-11T22:15:55.277", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/NixOS/nix/commit/f8170ce9f119e5e6724eb81ff1b5a2d4c0024000"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/NixOS/nix/security/advisories/GHSA-2ffj-w4mj-pg37"}, {"source": "security-advisories@github.com", "tags": ["Exploit"], "url": "https://hackmd.io/03UGerewRcy3db44JQoWvw"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/NixOS/nix/commit/f8170ce9f119e5e6724eb81ff1b5a2d4c0024000"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/NixOS/nix/security/advisories/GHSA-2ffj-w4mj-pg37"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://hackmd.io/03UGerewRcy3db44JQoWvw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-367"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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