CVE-2017-17807

{"id": "CVE-2017-17807", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.8}]}, "published": "2017-12-20T23:29:00.423", "references": [{"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/102301", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3617-1/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3617-2/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3617-3/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3619-1/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3619-2/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3620-1/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3620-2/", "source": "cve@mitre.org"}, {"url": "https://usn.ubuntu.com/3632-1/", "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2017/dsa-4073", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2018/dsa-4082", "source": "cve@mitre.org"}, {"url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.6", "tags": ["Issue Tracking", "Mailing List", "Release Notes"], "source": "cve@mitre.org"}, {"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/102301", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3617-1/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3617-2/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3617-3/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3619-1/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3619-2/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3620-1/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3620-2/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://usn.ubuntu.com/3632-1/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2017/dsa-4073", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2018/dsa-4082", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.6", "tags": ["Issue Tracking", "Mailing List", "Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's \"default request-key keyring\" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c."}, {"lang": "es", "value": "El subsistema KEYS en el kernel de Linux en versiones anteriores a la 4.14.6 omit\u00eda una comprobaci\u00f3n de control de acceso cuando se agregaba una clave al \"llavero de acceso por defecto\" de la tarea actual mediante la llamada al sistema request_key(), permitiendo a un usuario local utilizar una secuencia de llamadas de sistema manipuladas para a\u00f1adir claves a un llavero solo con permiso de b\u00fasqueda (no de escritura) a ese llavero. Esto est\u00e1 relacionado con construct_get_dest_keyring() en security/keys/request_key.c."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A92C99D-2B24-49B6-AFB9-2C47AFC49D0F", "versionEndExcluding": "4.14.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}