CVE-2014-7975

{"id": "CVE-2014-7975", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2014-10-13T10:55:09.263", "references": [{"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/60174", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/61145", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/62633", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://secunia.com/advisories/62634", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://thread.gmane.org/gmane.linux.kernel.stable/109312", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://www.openwall.com/lists/oss-security/2014/10/08/22", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/70314", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1031180", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2415-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2416-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2417-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2418-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2419-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2420-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2421-1", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1842", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2017:2077", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/96994", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call."}, {"lang": "es", "value": "La funci\u00f3n do_umount en fs/namespace.c en el kernel de Linux hasta 3.17 no requiere la capacidad CAP_SYS_ADMIN para llamadas do_remount_sb que cambian el sistema de ficheros root a s\u00f3lo lectura, lo que permite a usuarios locales causar una denegaci\u00f3n de servicio (p\u00e9rdida de la habilidad de escritura) mediante la realizaci\u00f3n de ciertas llamadas a la liberaci\u00f3n de sistemas, la limpieza del indicador / MNT_LOCKED, y la realizaci\u00f3n de una llamada al sistema umount MNT_FORCE."}], "lastModified": "2020-08-14T18:15:24.977", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2EDC011A-F5BE-496E-857F-8586DD6E33E4", "versionEndIncluding": "3.17"}], "operator": "OR"}]}, 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