FKIE_CVE-2026-24030

Vulnerability from fkie_nvd - Published: 2026-03-31 12:16 - Updated: 2026-07-25 10:10
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly closed, but in some cases the system might enter an out-of-memory state instead and terminate the process.
References
security@open-xchange.comhttps://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.htmlVendor Advisory
Impacted products
Vendor Product Version
powerdns dnsdist *
powerdns dnsdist *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.powerdns.com/",
          "defaultStatus": "unaffected",
          "modules": [
            "Incoming DNS over QUIC",
            "Incoming DNS over HTTP/3"
          ],
          "packageName": "dnsdist",
          "product": "DNSdist",
          "programFiles": [
            "doq.cc",
            "doh3.cc"
          ],
          "repo": "https://github.com/PowerDNS/pdns",
          "vendor": "PowerDNS",
          "versions": [
            {
              "lessThan": "1.9.12",
              "status": "affected",
              "version": "1.9.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.0.3",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@open-xchange.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "628B3B94-81DE-496E-B36A-B79A3DFFE1F4",
              "versionEndExcluding": "1.9.12",
              "versionStartIncluding": "1.9.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9AC850DD-FDD8-4C48-B861-4BBAF423FF57",
              "versionEndExcluding": "2.0.3",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly closed, but in some cases the system might enter an out-of-memory state instead and terminate the process."
    },
    {
      "lang": "es",
      "value": "Un atacante podr\u00eda enga\u00f1ar a DNSdist para que asigne demasiada memoria mientras procesa cargas \u00fatiles de DNS sobre QUIC o DNS sobre HTTP/3, lo que resultar\u00eda en una denegaci\u00f3n de servicio. En configuraciones con una gran cantidad de memoria disponible, esto generalmente resulta en una excepci\u00f3n y la conexi\u00f3n QUIC se cierra correctamente, pero en algunos casos el sistema podr\u00eda entrar en un estado de falta de memoria en su lugar y terminar el proceso."
    }
  ],
  "id": "CVE-2026-24030",
  "lastModified": "2026-07-25T10:10:00.167",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@open-xchange.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-24030",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-31T13:14:53.937284Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-31T12:16:27.770",
  "references": [
    {
      "source": "security@open-xchange.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html"
    }
  ],
  "sourceIdentifier": "security@open-xchange.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-789"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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