CVE-2014-8086

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de carrera en la funci\u00f3n ext4_file_write_iter en fs/ext4/file.c en el kernel de Linux hasta 3.17 permite a usuarios locales causar una denegaci\u00f3n de servicio (no disponibilidad de ficheros) a trav\u00e9s de una combinaci\u00f3n de una acci\u00f3n de escritura y una operaci\u00f3n F_SETFL fcntl para el indicador O_DIRECT."}], "id": "CVE-2014-8086", "lastModified": "2026-06-17T00:16:12.610", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": 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{"affected_release": [{"advisory": "RHSA-2015:0290", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-229.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-03-05T00:00:00Z"}, {"advisory": "RHSA-2015:0694", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-229.rt56.144.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2015-03-17T00:00:00Z"}], "bugzilla": {"description": "Kernel: fs: ext4 race condition", "id": "1151353", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151353"}, "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"}, "details": ["Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service (file unavailability) via a combination of a write action and an F_SETFL fcntl operation for the O_DIRECT flag.", "A race condition flaw was found in the Linux kernel's ext4 file system implementation that allowed a local, unprivileged user to crash the system by simultaneously writing to a file and toggling the O_DIRECT flag using fcntl(F_SETFL) on that file."], "name": "CVE-2014-8086", "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"}], "public_date": "2014-10-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-8086\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-8086"], "statement": "This issue does not affect the versions of Linux kernel as shipped with\nRed Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.\nThis issue affects the version of the kernel package as shipped with\nRed Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future kernel updates\nfor Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2 may address this\nissue.", "threat_severity": "Moderate"}

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