{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-05-18T00:00:00", "descriptions": [{"lang": "en", "value": "The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-01-04T19:57:01", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"}, {"name": "RHSA-2016:1847", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2016-1847.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"name": "RHSA-2016:2584", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"}, {"name": "91709", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/91709"}, {"name": "RHSA-2016:1875", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2016-1875.html"}, {"name": "RHSA-2016:2574", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html"}, {"name": "1036273", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1036273"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"name": "[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/07/11/8"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2016-6198", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html", "refsource": "CONFIRM", "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"}, {"name": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html", "refsource": "CONFIRM", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"}, {"name": "RHSA-2016:1847", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2016-1847.html"}, {"name": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca", "refsource": "CONFIRM", "url": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"name": "RHSA-2016:2584", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"}, {"name": "91709", "refsource": "BID", "url": "http://www.securityfocus.com/bid/91709"}, {"name": "RHSA-2016:1875", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2016-1875.html"}, {"name": "RHSA-2016:2574", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html"}, {"name": "1036273", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1036273"}, {"name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca", "refsource": "CONFIRM", "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"name": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7", "refsource": "CONFIRM", "url": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"name": "[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/07/11/8"}, {"name": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5", "refsource": "CONFIRM", "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"}, {"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, {"name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7", "refsource": "CONFIRM", "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T01:22:20.799Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"}, {"name": "RHSA-2016:1847", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2016-1847.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"name": "RHSA-2016:2584", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"}, {"name": "91709", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/91709"}, {"name": "RHSA-2016:1875", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2016-1875.html"}, {"name": "RHSA-2016:2574", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html"}, {"name": "1036273", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1036273"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"name": "[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/07/11/8"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2016-6198", "datePublished": "2016-08-06T20:00:00", "dateReserved": "2016-07-11T00:00:00", "dateUpdated": "2024-08-06T01:22:20.799Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1C36E5B8-129B-488B-B732-83E71CF311DD", "versionEndIncluding": "4.5.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"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:a:oracle:vm_server:3.4:*:*:*:*:*:*:*", "matchCriteriaId": "45DC1391-1EFC-49D7-9DD5-D9D9C5DFE746", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c."}, {"lang": "es", "value": "La capa del sistema de archivos en el kernel de Linux en versiones anteriores a 4.5.5 procede con operaciones de cambio de nombre despu\u00e9s de que un archivo OverlayFS es cambiado de nombre a un self-hardlink, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (ca\u00edda de sistema) a trav\u00e9s de una llamada al sistema, relacionado con fs/namei.c y fs/open.c."}], "id": "CVE-2016-6198", "lastModified": "2025-04-12T10:46:40.837", "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": "2016-08-06T20:59:13.457", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"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://rhn.redhat.com/errata/RHSA-2016-2574.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"}, {"source": "cve@mitre.org", "tags": ["Exploit", "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", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}, {"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://rhn.redhat.com/errata/RHSA-2016-2574.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "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", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by CAI Qian (Red Hat).", "affected_release": [{"advisory": "RHSA-2016:1875", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-327.36.1.rt56.237.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-09-15T00:00:00Z"}, {"advisory": "RHSA-2016:2584", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-514.rt56.420.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-11-03T00:00:00Z"}, {"advisory": "RHSA-2016:1847", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-327.36.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-09-15T00:00:00Z"}, {"advisory": "RHSA-2016:2574", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-514.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-11-03T00:00:00Z"}], "bugzilla": {"description": "kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs", "id": "1355654", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355654"}, "csaw": false, "cvss": {"cvss_base_score": "4.7", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "status": "verified"}, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-362", "details": ["The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c.", "A flaw was found that the vfs_rename() function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system."], "name": "CVE-2016-6198", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2016-07-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-6198\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-6198"], "statement": "This issue is not present in the Linux kernel packages as shipped with Red Hat Enterprise Linux versions 5 and 6.\nThis issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future Linux kernel updates for the respective releases may address this issue.", "threat_severity": "Moderate"}

{}