GSD-2020-24385

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td->td_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().
Aliases
Aliases
CVE-2020-24385
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-24385",
    "description": "In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td-\u003etd_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().",
    "id": "GSD-2020-24385"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-24385"
      ],
      "details": "In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td-\u003etd_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().",
      "id": "GSD-2020-24385",
      "modified": "2023-12-13T01:22:12.560493Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2020-24385",
        "STATE": "PUBLIC"
      },
      "affects": {
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                    "version": {
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            "value": "In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td-\u003etd_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find()."
          }
        ]
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                "value": "n/a"
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      "references": {
        "reference_data": [
          {
            "name": "https://www.midnightbsd.org/notes/",
            "refsource": "MISC",
            "url": "https://www.midnightbsd.org/notes/"
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            "name": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt",
            "refsource": "CONFIRM",
            "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt"
          }
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    },
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        "nodes": [
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                "cpe23Uri": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.2.6",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "2020-08-19",
                "versionStartIncluding": "1.3",
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              }
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          },
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            "children": [],
            "cpe_match": [
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                "cpe_name": [],
                "versionEndIncluding": "7.0",
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      "cve": {
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          "ID": "CVE-2020-24385"
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        "data_type": "CVE",
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        "description": {
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              "value": "In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td-\u003etd_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find()."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                {
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                  "value": "CWE-476"
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        },
        "references": {
          "reference_data": [
            {
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              "refsource": "MISC",
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              "url": "https://www.midnightbsd.org/notes/"
            },
            {
              "name": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt",
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              "url": "http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt"
            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-09-11T14:06Z",
      "publishedDate": "2020-09-03T15:15Z"
    }
  }
}


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