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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "38844317-DEDF-4600-BA0E-C7D28D8EC200", "versionEndExcluding": "5.2.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default."}, {"lang": "es", "value": "En el kernel de Linux anterior a versi\u00f3n 5.2.3, el archivo drivers/block/floppy.c, permite una denegaci\u00f3n de servicio mediante la divisi\u00f3n por cero de la funci\u00f3n setup_format_params. Dos ioctls consecutivos pueden desencadenar el error: el primero debe establecer la geometr\u00eda de la unidad con valores .sect y .rate que hacen que F_SECT_PER_TRACK sea cero. A continuaci\u00f3n, se debe llamar a la operaci\u00f3n de formato de disquete. Puede ser activado por un usuario local sin privilegios incluso cuando no se ha insertado un disquete. NOTA: QEMU crea el dispositivo de disquete de por defecto."}], "id": "CVE-2019-14284", "lastModified": "2019-08-11T23:15:12.970", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-07-26T13:15:13.113", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html"}, {"source": "cve@mitre.org", "url": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"}, {"source": "cve@mitre.org", "url": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html"}, {"source": "cve@mitre.org", "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Aug/13"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Aug/18"}, {"source": "cve@mitre.org", "url": "https://seclists.org/bugtraq/2019/Aug/26"}, {"source": "cve@mitre.org", "url": "https://security.netapp.com/advisory/ntap-20190905-0002/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4114-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4115-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4116-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4117-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4118-1/"}, {"source": "cve@mitre.org", "url": "https://www.debian.org/security/2019/dsa-4495"}, {"source": "cve@mitre.org", "url": "https://www.debian.org/security/2019/dsa-4497"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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