Security advisory

{
  "id": "349a46a94c7f537a7c0374b397b216f79c70b77093bb8c34e4e750774557202b",
  "url": "https://osv.dev/vulnerability/CVE-2019-11049",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-11049",
    "summary": "In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.",
    "evidence": "osv:CVE-2019-11049",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-11049",
      "aliases": [
        "CVE-2019-11049"
      ],
      "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/php/php-src",
              "type": "GIT",
              "events": [
                {
                  "introduced": "52ace952a1b65ca80fc2617f11c2fa6dd03f51bd"
                },
                {
                  "last_affected": "a1457cf8b8b82516bf9561eb43972b63074fa9ae"
                },
                {
                  "introduced": "3c7824e16ec4c3cee417262445d2c2b66531c10f"
                },
                {
                  "last_affected": "3c7824e16ec4c3cee417262445d2c2b66531c10f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.3.0"
                      },
                      {
                        "last_affected": "7.3.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.4.0"
                      },
                      {
                        "last_affected": "7.4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.4.0",
            "php-7.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11049.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:34.985191602Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/",
        "https://seclists.org/bugtraq/2020/Feb/27",
        "https://security.netapp.com/advisory/ntap-20200103-0002/",
        "https://www.debian.org/security/2020/dsa-4626",
        "https://www.tenable.com/security/tns-2021-14",
        "https://bugs.php.net/bug.php?id=78943"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "tenable:security_center",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "5.19.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "30"
                  },
                  {
                    "last_affected": "30"
                  },
                  {
                    "introduced": "31"
                  },
                  {
                    "last_affected": "31"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-11049",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433651,
  "published_at": "2019-12-23T03:15:11.897+00:00"
}