Security advisory

{
  "id": "def81730a58feec0312592d0b14728d1d70c264d7150cff6b4a2d72e959e3061",
  "url": "https://osv.dev/vulnerability/CVE-2020-13901",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13901",
    "summary": "An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_merge in sdp.c has a stack-based buffer overflow.",
    "evidence": "osv:CVE-2020-13901",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-13901",
      "aliases": [
        "CVE-2020-13901"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/meetecho/janus-gateway",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6435c70839f1f1abe72f4e9ff0091f09ded8ef15"
                },
                {
                  "last_affected": "30316fb78720bcf3b12cecea314e16a93915128a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:meetecho:janus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.3.0"
                      },
                      {
                        "last_affected": "0.10.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.10.0",
            "v0.9.5",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.7.6",
            "v0.7.5",
            "v0.7.4",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.3",
            "v0.6.2",
            "v0.6.1",
            "v0.6.0",
            "v0.5.0",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0-broken",
            "v0.3.1",
            "v0.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13901.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:48.398534024Z",
      "provider": "osv",
      "references": [
        "https://github.com/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L1248",
        "https://github.com/meetecho/janus-gateway/pull/2214",
        "https://github.com/merrychap/poc_exploits/tree/master/janus-webrtc/CVE-2020-13901"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-13901",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382969,
  "published_at": "2020-06-10T22:15:11.467+00:00"
}