Security advisory

{
  "id": "f9aef1f25bb9e78226176e68d77bd0ccf65f5d2b923574908fece6935af9488e",
  "url": "https://osv.dev/vulnerability/CVE-2020-6080",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-6080",
    "summary": "An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].",
    "evidence": "osv:CVE-2020-6080",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-6080",
      "aliases": [
        "CVE-2020-6080"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/videolabs/libmicrodns",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a12486a5aea85e0f3f02a3721855963b5f1e185f"
                },
                {
                  "last_affected": "a12486a5aea85e0f3f02a3721855963b5f1e185f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.1.0"
                      },
                      {
                        "last_affected": "0.1.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6080.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:40.990401213Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/202005-10",
        "https://www.debian.org/security/2020/dsa-4671",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-6080",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435060,
  "published_at": "2020-03-24T21:15:14.473+00:00"
}