github - ghsa-4q3h-v92p-gchj

ghsa-4q3h-v92p-gchj

Vulnerability from github

Published

2025-05-20 12:30

Modified

2025-05-20 12:30

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

The remedy is: upgrade to the patched 1.9.10 version.

A workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting.

We would like to thank Renaud Allard for bringing this issue to our attention.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-30193"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T12:15:19Z",
    "severity": "HIGH"
  },
  "details": "In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service.\n\nThe remedy is: upgrade to the patched 1.9.10 version.\n\nA workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting.\n\nWe would like to thank Renaud Allard for bringing this issue to our attention.",
  "id": "GHSA-4q3h-v92p-gchj",
  "modified": "2025-05-20T12:30:23Z",
  "published": "2025-05-20T12:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30193"
    },
    {
      "type": "WEB",
      "url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-03.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-30193 (GCVE-0-2025-30193)

Vulnerability from cvelistv5

Published

2025-05-20 11:17

Modified

2025-05-20 13:16

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-674 - Uncontrolled Recursion

Summary

In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.10 version. A workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting. We would like to thank Renaud Allard for bringing this issue to our attention.

References

▼	URL	Tags
	https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-03.html

Impacted products

	Vendor	Product	Version
	PowerDNS	DNSdist

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-30193",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-20T13:16:06.361581Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-20T13:16:34.707Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.powerdns.com/",
          "defaultStatus": "affected",
          "modules": [
            "DNS over TCP"
          ],
          "packageName": "dnsdist",
          "product": "DNSdist",
          "programFiles": [
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          ],
          "repo": "https://github.com/PowerDNS/pdns",
          "vendor": "PowerDNS",
          "versions": [
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              "version": "1.9.10",
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            }
          ]
        }
      ],
      "credits": [
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          "type": "finder",
          "value": "Renaud Allard"
        }
      ],
      "datePublic": "2025-05-20T11:00:00.000Z",
      "descriptions": [
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      ],
      "metrics": [
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          "cvssV3_1": {
            "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",
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        "orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
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      },
      "references": [
        {
          "url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-03.html"
        }
      ],
      "source": {
        "advisory": "PowerDNS Security Advisory 2025-03",
        "discovery": "EXTERNAL"
      },
      "title": "Denial of service via crafted TCP exchange",
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  "cveMetadata": {
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    "cveId": "CVE-2025-30193",
    "datePublished": "2025-05-20T11:17:17.378Z",
    "dateReserved": "2025-03-18T08:39:46.884Z",
    "dateUpdated": "2025-05-20T13:16:34.707Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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