fkie_cve-2020-24863
Vulnerability from fkie_nvd
Published
2020-09-03 15:15
Modified
2024-11-21 05:16
Summary
A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode.
Impacted products



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "360E6FE9-63B9-43CB-B559-B5D21661B6C8",
              "versionEndExcluding": "1.2.7",
              "vulnerable": true
            },
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              "matchCriteriaId": "45E97C30-01B2-49EC-992D-6FED17D48BFB",
              "versionEndIncluding": "2020-08-19",
              "versionStartIncluding": "1.3",
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            }
          ],
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          "operator": "OR"
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    },
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "DA28C915-6E92-4F28-9F28-AAF9E5A208C0",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una vulnerabilidad de corrupci\u00f3n de memoria en la funci\u00f3n del kernel kern_getfsstat en MidnightBSD versiones anteriores a 1.2.7 y versiones 1.3 hasta el19-08-2020, y FreeBSD versiones hasta 11.4, que permite a un atacante desencadenar una liberaci\u00f3n no v\u00e1lida y bloquear el sistema por medio de un valor de tama\u00f1o dise\u00f1ado en conjunto con un modo no v\u00e1lido"
    }
  ],
  "id": "CVE-2020-24863",
  "lastModified": "2024-11-21T05:16:08.933",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "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
      }
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  },
  "published": "2020-09-03T15:15:11.520",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt"
    },
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      "tags": [
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      "url": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c"
    },
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      "source": "cve@mitre.org",
      "tags": [
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        "Vendor Advisory"
      ],
      "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc"
    },
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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