fkie_cve-2016-6197
Vulnerability from fkie_nvd
Published
2016-08-06 20:59
Modified
2024-11-21 02:55
Severity ?
Summary
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.
References
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*", "matchCriteriaId": "CC7A498A-A669-4C42-8134-86103C799D13", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "02606D90-EB6B-45DE-B022-6E5783BD64FA", "versionEndIncluding": "4.5.7", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*", "matchCriteriaId": "4BA58099-26F7-4B01-B9FC-275F012FE9C6", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "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." } ], "id": "CVE-2016-6197", "lastModified": "2024-11-21T02:55:39.233", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2016-08-06T20:59:12.067", "references": [ { "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Patch" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185" }, { "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", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2016/07/11/8" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html" }, { "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ], "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html" }, { "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", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355650" }, { "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Patch" ], "url": "https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185" }, { "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", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2016/07/11/8" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html" }, { "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", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355650" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch" ], "url": "https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-20" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.