CVE-2016-6197

{"id": "CVE-2016-6197", "cveTags": [], "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}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/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": "2016-08-06T20:59:12.067", "references": [{"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1847.html", "source": "cve@mitre.org"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1875.html", "source": "cve@mitre.org"}, {"url": "http://www.openwall.com/lists/oss-security/2016/07/11/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/91709", "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1036273", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-3070-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-3070-2", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-3070-3", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-3070-4", "source": "cve@mitre.org"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355650", "tags": ["Issue Tracking"], "source": "cve@mitre.org"}, {"url": "https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1847.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1875.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/07/11/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/91709", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1036273", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-3070-1", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-3070-2", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-3070-3", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-3070-4", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355650", "tags": ["Issue Tracking"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink."}, {"lang": "es", "value": "fs/overlayfs/dir.c en la implementaci\u00f3n del sistema de archivos OverlayFS en el kernel de Linux en versiones anteriores a 4.6 no verifica adecuadamente la dentry superior antes de proceder con el procesamiento de desconexi\u00f3n y cambio de nombre de llamadas al sistema, lo que permite a usuarios locales provocar una denegaci\u00f3n del servicio (ca\u00edda de sistema) a trav\u00e9s de una llamada al sistema cambiada de nombre que especifica un self-hardlink."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC7A498A-A669-4C42-8134-86103C799D13"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02606D90-EB6B-45DE-B022-6E5783BD64FA", "versionEndIncluding": "4.5.7"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4BA58099-26F7-4B01-B9FC-275F012FE9C6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}