Security advisory

{
  "id": "135e696056c82b0167df7e98e3ebaf140ad6bbe5c1dad0327afbd11f08086526",
  "url": "https://osv.dev/vulnerability/CVE-2016-9400",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-9400",
    "summary": "The CClient::ProcessServerPacket method in engine/client/client.cpp in Teeworlds before 0.6.4 allows remote servers to write to arbitrary physical memory locations and possibly execute arbitrary code via vectors involving snap handling.",
    "evidence": "osv:CVE-2016-9400",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2016-9400",
      "aliases": [
        "CVE-2016-9400"
      ],
      "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/teeworlds/teeworlds",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ff254722a2683867fcb3e67569ffd36226c4bc62"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:teeworlds:teeworlds:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.6.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ff254722a2683867fcb3e67569ffd36226c4bc62"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.6.3-release",
            "0.6.2-release",
            "0.6.1-release",
            "0.6.0-release",
            "0.6-start",
            "0.5-endofline"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9400.json",
            "vanir_signatures": [
              {
                "id": "CVE-2016-9400-2c5f1742",
                "digest": {
                  "length": 9430,
                  "function_hash": "286073162751140354938576656184130844309"
                },
                "source": "https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62",
                "target": {
                  "file": "src/engine/client/client.cpp",
                  "function": "CClient::ProcessServerPacket"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2016-9400-4aa140bd",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "12755029810174537852439606170464130872",
                    "190961128327537499142034099314492584901",
                    "29610259038838004614915505634041596828",
                    "236631918322881244176486949797864485716"
                  ]
                },
                "source": "https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62",
                "target": {
                  "file": "src/engine/client/client.cpp"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2016-9400-b7359691",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "117605946341977224921900243438466174443",
                    "165748084071607298985861308595525711884",
                    "116270049370660702062539090045192297860",
                    "4431894253017251532693077480451030300"
                  ]
                },
                "source": "https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62",
                "target": {
                  "file": "src/engine/shared/snapshot.h"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:19:50Z"
          }
        }
      ],
      "modified": "2026-10-20T13:19:50.964407972Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C4JNSBXXPE7O32ZMFK7D7YL6EKLG7PRV/",
        "https://security.gentoo.org/glsa/201705-13",
        "https://www.teeworlds.com/?page=news&id=12086",
        "https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "23"
                  },
                  {
                    "last_affected": "23"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-9400",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387525,
  "published_at": "2017-02-22T16:59:00.347+00:00"
}