mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied

{
  "id": "5408deb3963afe38bffe524527ee745ac1bb7fe524e5c806dd8315dd065180fc",
  "url": "https://osv.dev/vulnerability/CVE-2023-28625",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mod_auth_openidc core dump when OIDCStripCookies is set and an empty Cookie header is supplied",
    "summary": "mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when `OIDCStripCookies` is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using `OIDCStripCookies`.",
    "evidence": "osv:CVE-2023-28625",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-28625",
      "aliases": [
        "CVE-2023-28625",
        "GHSA-f5xw-rvfr-24qr"
      ],
      "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/openidc/mod_auth_openidc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4fe40bd8bed0c7697f4fb2c3733d02d472cb849e"
                },
                {
                  "fixed": "3f11976dab56af0a46a7dddb7a275cc16d6eb726"
                },
                {
                  "fixed": "c0e1edac3c4c19988ccdc7713d7aebfce6ff916a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "fixed": "2.4.13.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c0e1edac3c4c19988ccdc7713d7aebfce6ff916a"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3f11976dab56af0a46a7dddb7a275cc16d6eb726"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.4.13.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.4.13.1",
            "v2.4.13",
            "v2.4.12.3",
            "v2.4.12.2",
            "v2.4.12.1",
            "v2.4.12",
            "v2.4.11.3",
            "v2.4.11.2",
            "v2.4.11.1",
            "v2.4.11",
            "v2.4.10",
            "v2.4.9.4",
            "v2.4.9.3",
            "v2.4.9.2",
            "v2.4.9.1",
            "v2.4.9",
            "v2.4.8.4",
            "v2.4.8.3",
            "v2.4.8.2",
            "v2.4.8.1",
            "v2.4.7.2",
            "v2.4.7.1",
            "v2.4.7",
            "v2.4.6",
            "v2.4.5",
            "v2.4.4.1",
            "v2.4.4",
            "v2.4.3",
            "v2.4.2.1",
            "v2.4.2",
            "v2.4.1",
            "v2.4.0.4",
            "v2.4.0.3",
            "v2.4.0.2",
            "v2.4.0.1",
            "v2.4.0",
            "v2.3.11",
            "2.3.11rc1",
            "v2.3.10.2",
            "v2.3.10.1",
            "v2.3.10",
            "v2.3.9",
            "v2.3.8",
            "v2.3.7",
            "v2.3.6",
            "v2.3.5",
            "v2.3.4",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.3.0rc3",
            "v2.3.0rc0",
            "v2.2.0",
            "v2.1.6",
            "v2.1.5",
            "v2.1.4",
            "v2.1.3",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28625.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.317830431Z",
      "provider": "osv",
      "references": [
        "https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179",
        "https://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2",
        "https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WIBKFC22PDH6UXMSZ23PHTD7736ZC7BB/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28625.json",
        "https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qr",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-28625",
        "https://www.debian.org/security/2023/dsa-5405",
        "https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916a"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28625.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-28625",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 522078,
  "published_at": "2023-04-03T13:19:40.422+00:00"
}