{
   "document": {
      "category": "csaf_security_advisory",
      "csaf_version": "2.0",
      "distribution": {
         "tlp": {
            "label": "WHITE",
            "url": "https://www.first.org/tlp/"
         }
      },
      "lang": "en",
      "notes": [
         {
            "category": "description",
            "text": "FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.  The included FastCGI library is affected by  CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-FCGI-2025-40907 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2025/cpansa-fcgi-2025-40907.json"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2025/04/23/4",
            "url": "http://www.openwall.com/lists/oss-security/2025/04/23/4"
         },
         {
            "category": "external",
            "summary": "https://github.com/FastCGI-Archives/fcgi2/issues/67",
            "url": "https://github.com/FastCGI-Archives/fcgi2/issues/67"
         },
         {
            "category": "external",
            "summary": "https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5",
            "url": "https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5"
         },
         {
            "category": "external",
            "summary": "https://github.com/perl-catalyst/FCGI/issues/14",
            "url": "https://github.com/perl-catalyst/FCGI/issues/14"
         },
         {
            "category": "external",
            "summary": "https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patch",
            "url": "https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patch"
         },
         {
            "category": "external",
            "summary": "https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library",
            "url": "https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library"
         },
         {
            "category": "external",
            "summary": "CVE-2025-40907 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40907"
         }
      ],
      "title": "FCGI vulnerability",
      "tracking": {
         "current_release_date": "2025-05-16T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-FCGI-2025-40907",
         "initial_release_date": "2025-05-16T00:00:00",
         "revision_history": [
            {
               "date": "2025-05-16T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>=0.44",
                  "product": {
                     "name": "FCGI greater than or equal 0.44",
                     "product_id": "CSAFPID-0001"
                  }
               }
            ],
            "category": "product_name",
            "name": "FCGI"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2025-40907",
         "cwe": {
            "id": "CWE-122",
            "name": "Heap-based Buffer Overflow"
         },
         "notes": [
            {
               "category": "description",
               "text": "FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.\n\nThe included FastCGI library is affected by  CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "known_affected": [
               "CSAFPID-0001"
            ]
         },
         "scores": [
            {
               "cvss_v3": {
                  "baseScore": 5.3,
                  "baseSeverity": "MEDIUM",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "version": "3.1"
               },
               "products": [
                  "CSAFPID-0001"
               ]
            }
         ]
      }
   ]
}