CVE-2019-14284 (GCVE-0-2019-14284)
Vulnerability from cvelistv5
Published
2019-07-26 12:25
Modified
2024-08-05 00:12
Severity ?
CWE
  • n/a
Summary
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.
References
cve@mitre.org http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
cve@mitre.org http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
cve@mitre.org http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
cve@mitre.org http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
cve@mitre.org http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
cve@mitre.org https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3 Release Notes, Vendor Advisory
cve@mitre.org https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch, Vendor Advisory
cve@mitre.org https://github.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch, Third Party Advisory
cve@mitre.org https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
cve@mitre.org https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
cve@mitre.org https://seclists.org/bugtraq/2019/Aug/13
cve@mitre.org https://seclists.org/bugtraq/2019/Aug/18
cve@mitre.org https://seclists.org/bugtraq/2019/Aug/26
cve@mitre.org https://security.netapp.com/advisory/ntap-20190905-0002/
cve@mitre.org https://usn.ubuntu.com/4114-1/
cve@mitre.org https://usn.ubuntu.com/4115-1/
cve@mitre.org https://usn.ubuntu.com/4116-1/
cve@mitre.org https://usn.ubuntu.com/4117-1/
cve@mitre.org https://usn.ubuntu.com/4118-1/
cve@mitre.org https://www.debian.org/security/2019/dsa-4495
cve@mitre.org https://www.debian.org/security/2019/dsa-4497
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
af854a3a-2127-422b-91ae-364da2661108 http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
af854a3a-2127-422b-91ae-364da2661108 http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
af854a3a-2127-422b-91ae-364da2661108 http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
af854a3a-2127-422b-91ae-364da2661108 http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
af854a3a-2127-422b-91ae-364da2661108 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3 Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
af854a3a-2127-422b-91ae-364da2661108 https://seclists.org/bugtraq/2019/Aug/13
af854a3a-2127-422b-91ae-364da2661108 https://seclists.org/bugtraq/2019/Aug/18
af854a3a-2127-422b-91ae-364da2661108 https://seclists.org/bugtraq/2019/Aug/26
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20190905-0002/
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/4114-1/
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/4115-1/
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/4116-1/
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/4117-1/
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/4118-1/
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2019/dsa-4495
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2019/dsa-4497
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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              "url": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-14284",
    "datePublished": "2019-07-26T12:25:01",
    "dateReserved": "2019-07-26T00:00:00",
    "dateUpdated": "2024-08-05T00:12:43.362Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-14284\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-07-26T13:15:13.113\",\"lastModified\":\"2024-11-21T04:26:22.260\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"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.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.2,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-369\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.2.3\",\"matchCriteriaId\":\"38844317-DEDF-4600-BA0E-C7D28D8EC200\"}]}]}],\"references\":[{\"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\"},{\"url\":\"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release 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  }
}


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