Vulnerability-Lookup

GHSA-CRJG-W57M-RQQF

Vulnerability from github – Published: 2024-07-22 17:30 – Updated: 2024-11-18 16:26

Summary

DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks

Details

Impact

Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones.

Patches

Users should upgrade to dnsjava v3.6.0

Workarounds

Although not recommended, only using a non-validating resolver, will remove the vulnerability.

References

https://www.athene-center.de/en/keytrap

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

7.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "dnsjava:dnsjava"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "3.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jitsi:dnssecjava"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-07-22T17:30:19Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nUsers using the `ValidatingResolver` for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones.\n\n### Patches\nUsers should upgrade to dnsjava v3.6.0\n\n### Workarounds\nAlthough not recommended, only using a non-validating resolver, will remove the vulnerability. \n\n### References\nhttps://www.athene-center.de/en/keytrap\n",
  "id": "GHSA-crjg-w57m-rqqf",
  "modified": "2024-11-18T16:26:55Z",
  "published": "2024-07-22T17:30:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dnsjava/dnsjava/security/advisories/GHSA-crjg-w57m-rqqf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50387"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dnsjava/dnsjava/commit/07ac36a11578cc1bce0cd8ddf2fe568f062aee78"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dnsjava/dnsjava/commit/3ddc45ce8cdb5c2274e10b7401416f497694e1cf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8459-gg55-8qjj"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dnsjava/dnsjava"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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