Security advisory

{
  "id": "a8ff6beb5c01501001125f2b26a7ef27fd2f4d61b0f16af7ba7f32fb5b56acf6",
  "url": "https://osv.dev/vulnerability/CVE-2020-24334",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-24334",
    "summary": "The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.",
    "evidence": "osv:CVE-2020-24334",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-24334",
      "aliases": [
        "CVE-2020-24334"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/adamdunkels/uip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "a49def743f6e5c7d0c0f2d724f0b8e0c563a4a37"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:uip_project:uip:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "uip-1-0",
            "uip-0-9",
            "uip-0-6",
            "uip-0-5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24334.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:34.990234643Z",
      "provider": "osv",
      "references": [
        "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01",
        "https://www.kb.cert.org/vuls/id/815128"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-24334",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433653,
  "published_at": "2020-12-11T23:15:13.807+00:00"
}