CVE-2020-24863 (GCVE-0-2020-24863)

Vulnerability from cvelistv5 – Published: 2020-09-03 14:34 – Updated: 2024-08-04 15:19
VLAI?
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.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:19:09.428Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.midnightbsd.org/notes/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-03T14:34:32",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.midnightbsd.org/notes/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-24863",
          "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": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.midnightbsd.org/notes/",
              "refsource": "MISC",
              "url": "https://www.midnightbsd.org/notes/"
            },
            {
              "name": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c",
              "refsource": "MISC",
              "url": "https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c"
            },
            {
              "name": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt",
              "refsource": "CONFIRM",
              "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt"
            },
            {
              "name": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc",
              "refsource": "CONFIRM",
              "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-24863",
    "datePublished": "2020-09-03T14:34:32",
    "dateReserved": "2020-08-28T00:00:00",
    "dateUpdated": "2024-08-04T15:19:09.428Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"1.2.7\", \"matchCriteriaId\": \"360E6FE9-63B9-43CB-B559-B5D21661B6C8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.3\", \"versionEndIncluding\": \"2020-08-19\", \"matchCriteriaId\": \"45E97C30-01B2-49EC-992D-6FED17D48BFB\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"11.4\", \"matchCriteriaId\": \"DA28C915-6E92-4F28-9F28-AAF9E5A208C0\"}]}]}]",
      "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": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"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:C\", \"baseScore\": 4.9, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 3.9, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-09-03T15:15:11.520",
      "references": "[{\"url\": \"http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Vendor Advisory\"]}, {\"url\": \"https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.midnightbsd.org/notes/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Vendor Advisory\"]}, {\"url\": \"https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.midnightbsd.org/notes/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-24863\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2020-09-03T15:15:11.520\",\"lastModified\":\"2024-11-21T05:16:08.933\",\"vulnStatus\":\"Modified\",\"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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"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:C\",\"baseScore\":4.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.2.7\",\"matchCriteriaId\":\"360E6FE9-63B9-43CB-B559-B5D21661B6C8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.3\",\"versionEndIncluding\":\"2020-08-19\",\"matchCriteriaId\":\"45E97C30-01B2-49EC-992D-6FED17D48BFB\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"11.4\",\"matchCriteriaId\":\"DA28C915-6E92-4F28-9F28-AAF9E5A208C0\"}]}]}],\"references\":[{\"url\":\"http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.midnightbsd.org/notes/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.midnightbsd.org/notes/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.