Security advisory

{
  "id": "41f379d57b209ced9e8b7288610ad987e80833602b1ca0d06b38d4bb4b64e6a9",
  "url": "https://osv.dev/vulnerability/CVE-2019-20797",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-20797",
    "summary": "An issue was discovered in e6y prboom-plus 2.5.1.5. There is a buffer overflow in client and server code responsible for handling received UDP packets, as demonstrated by I_SendPacket or I_SendPacketTo in i_network.c.",
    "evidence": "osv:CVE-2019-20797",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-20797",
      "aliases": [
        "CVE-2019-20797"
      ],
      "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/coelckers/prboom-plus",
              "type": "GIT",
              "events": [
                {
                  "introduced": "eb273ffd895deeeabc362302a2584f8700a74f6d"
                },
                {
                  "last_affected": "eb273ffd895deeeabc362302a2584f8700a74f6d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:prboom-plus_project:prboom-plus:2.5.1.5:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.5.1.5"
                      },
                      {
                        "last_affected": "2.5.1.5"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.5.1.5",
            "v2.5.1.5um"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20797.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:57.079024861Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77J22ZEQXS5SAYZGBDJ475AKFFJNKX5L/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WS7GRZUIHCGLFET33MGC3PEKCH37W6/",
        "https://sourceforge.net/p/prboom-plus/bugs/252/",
        "https://sourceforge.net/p/prboom-plus/bugs/253/",
        "https://logicaltrust.net/blog/2019/10/prboom1.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-20797",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438784,
  "published_at": "2020-05-18T00:15:11.08+00:00"
}