Security advisory

{
  "id": "ad4e638c5b27a1dbff116dab6dbaadfd68787290fe5ad6bd190476fb7fed085c",
  "url": "https://osv.dev/vulnerability/CVE-2020-25269",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-25269",
    "summary": "An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.",
    "evidence": "osv:CVE-2020-25269",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-25269",
      "aliases": [
        "CVE-2020-25269"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/inspircd/inspircd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9f24bef18e28654a07b30ba284663ce73e0a8125"
                },
                {
                  "fixed": "6b5aac0267058f25b4d6dcbfc66b0ff02e1b61dd"
                },
                {
                  "introduced": "68e5d0a151d8b5ca6577a0053dcda95774bf323a"
                },
                {
                  "fixed": "7a02052130721d83b43a349dc9b0650ad798fc08"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0"
                      },
                      {
                        "fixed": "2.0.29"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0"
                      },
                      {
                        "fixed": "3.6.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.28",
            "v3.5.0",
            "v3.4.0",
            "v3.3.0",
            "v3.2.0",
            "v3.1.0",
            "v3.0.1",
            "v3.0.0",
            "v2.0.27",
            "v2.0.26",
            "v2.0.25",
            "v2.0.24",
            "v2.0.23",
            "v2.0.22",
            "v2.0.21",
            "v2.0.20",
            "v2.0.19",
            "v2.0.18",
            "v2.0.17",
            "v2.0.16",
            "v2.0.15",
            "v2.0.14",
            "v2.0.13",
            "v2.0.12",
            "v2.0.11",
            "v2.0.10",
            "v2.0.9",
            "v2.0.8",
            "v2.0.7",
            "v2.0.6rc1",
            "v2.0.5",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0rc2",
            "v2.0.0rc1",
            "v2.0.0b4",
            "v2.0.0b3",
            "v2.0.0b2",
            "v2.0.0b1",
            "v2.0.0a2",
            "v2.0.0a1",
            "v2.0fork"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25269.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:52.838806153Z",
      "provider": "osv",
      "references": [
        "https://docs.inspircd.org/security/2020-01/",
        "https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html",
        "https://www.debian.org/security/2020/dsa-4764",
        "https://github.com/inspircd/inspircd/compare/426d1c8...b3f1db9",
        "https://github.com/inspircd/inspircd/compare/v2.0.28...07d7dea"
      ],
      "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-2020-25269",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383992,
  "published_at": "2020-09-11T05:15:12.607+00:00"
}