GSD-2021-3543

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.
Aliases
Aliases
CVE-2021-3543
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3543",
    "description": "A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.",
    "id": "GSD-2021-3543",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3543.html",
      "https://access.redhat.com/errata/RHSA-2021:2169",
      "https://access.redhat.com/errata/RHSA-2021:2168",
      "https://ubuntu.com/security/CVE-2021-3543",
      "https://security.archlinux.org/CVE-2021-3543",
      "https://linux.oracle.com/cve/CVE-2021-3543.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2021-3543",
      "modified": "2023-12-13T01:23:35.055054Z",
      "schema_version": "1.4.0"
    }
  },
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                          "version_value": "kernel 4.18.0"
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                "value": "(CWE-416|CWE-476)"
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            }
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      },
      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-06-03T14:43Z",
      "publishedDate": "2021-06-01T14:15Z"
    }
  }
}



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