gsd-2021-23017
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Aliases
Aliases
CVE-2021-23017


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-23017",
    "description": "A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.",
    "id": "GSD-2021-23017",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-23017.html",
      "https://www.debian.org/security/2021/dsa-4921",
      "https://access.redhat.com/errata/RHSA-2022:0323",
      "https://access.redhat.com/errata/RHSA-2021:4618",
      "https://access.redhat.com/errata/RHSA-2021:3925",
      "https://access.redhat.com/errata/RHSA-2021:3873",
      "https://access.redhat.com/errata/RHSA-2021:3653",
      "https://access.redhat.com/errata/RHBA-2021:3472",
      "https://access.redhat.com/errata/RHBA-2021:2955",
      "https://access.redhat.com/errata/RHSA-2021:2290",
      "https://access.redhat.com/errata/RHSA-2021:2278",
      "https://access.redhat.com/errata/RHSA-2021:2259",
      "https://access.redhat.com/errata/RHSA-2021:2258",
      "https://ubuntu.com/security/CVE-2021-23017",
      "https://advisories.mageia.org/CVE-2021-23017.html",
      "https://security.archlinux.org/CVE-2021-23017",
      "https://alas.aws.amazon.com/cve/html/CVE-2021-23017.html",
      "https://linux.oracle.com/cve/CVE-2021-23017.html",
      "https://access.redhat.com/errata/RHSA-2021:3851",
      "https://packetstormsecurity.com/files/cve/CVE-2021-23017"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2021-23017",
      "modified": "2023-12-13T01:23:30.097442Z",
      "schema_version": "1.4.0"
    }
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.5
        }
      },
      "lastModifiedDate": "2022-09-14T15:49Z",
      "publishedDate": "2021-06-01T13:15Z"
    }
  }
}


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