CVE-2018-6558

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{"affected": [{"affectedData": [{"product": "fscrypt", "vendor": "The fscrypt Project", "versions": [{"status": "affected", "version": "before 0.2.4"}]}], "source": "security@ubuntu.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:fscrypt:*:*:*:*:*:*:*:*", "matchCriteriaId": "80891EB5-205B-4BB3-8BEA-589FD0B5CDB3", "versionEndExcluding": "0.2.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The pam_fscrypt module in fscrypt before 0.2.4 may incorrectly restore primary and supplementary group IDs to the values associated with the root user, which allows attackers to gain privileges via a successful login through certain applications that use Linux-PAM (aka pam)."}, {"lang": "es", "value": "El m\u00f3dulo pam_fscrypt en fscrypt en versiones anteriores a la 0.2.4 podr\u00eda restaurar incorrectamente los ID de los grupos primarios y suplementarios a los valores asociados con el usuario root, lo que permite que los atacantes obtengan privilegios mediante un inicio de sesi\u00f3n con \u00e9xito a trav\u00e9s de determinadas aplicaciones que utilicen Linux-PAM (tambi\u00e9n conocido como pam)."}], "id": "CVE-2018-6558", "lastModified": "2026-06-17T02:02:01.473", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-08-23T19:29:01.127", "references": [{"source": "security@ubuntu.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b"}, {"source": "security@ubuntu.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66"}, {"source": "security@ubuntu.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/issues/77"}, {"source": "security@ubuntu.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://launchpad.net/bugs/1787548"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/commit/3022c1603d968c22f147b4a2c49c4637dd1be91b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/commit/315f9b042237200174a1fb99427f74027e191d66"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/google/fscrypt/issues/77"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://launchpad.net/bugs/1787548"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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