Security advisory

{
  "id": "f5dc1f65e75191f869cc819c3cdbd891a45747e70c2520a68124e38df55ed4ac",
  "url": "https://osv.dev/vulnerability/CVE-2019-9021",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-9021",
    "summary": "An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A heap-based buffer over-read in PHAR reading functions in the PHAR extension may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse the file name, a different vulnerability than CVE-2018-20783. This is related to phar_detect_phar_fname_ext in ext/phar/phar.c.",
    "evidence": "osv:CVE-2019-9021",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-9021",
      "aliases": [
        "CVE-2019-9021"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/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": "0"
                },
                {
                  "fixed": "4b8f72da5dfb201af4e82dee960261d8657e414f"
                },
                {
                  "introduced": "60fffd296abce5fc071f3c173c25a2696cf683c6"
                },
                {
                  "fixed": "b3ad2be890e86c69cdc661739c74b677b46a53cb"
                },
                {
                  "introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
                },
                {
                  "fixed": "643a161a24e662fd2afa9bf3591b105f4881e93e"
                },
                {
                  "introduced": "52ace952a1b65ca80fc2617f11c2fa6dd03f51bd"
                },
                {
                  "fixed": "b51be55fe5488a090f6b12200987f4c7afe8cfd3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.6.40"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "fixed": "7.1.26"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.2.0"
                      },
                      {
                        "fixed": "7.2.14"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.3.0"
                      },
                      {
                        "fixed": "7.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "php-7.3.1RC1",
            "POST_PHP7_NSAPI_REMOVAL",
            "PRE_PHP7_NSAPI_REMOVAL",
            "PRE_PHP7_EREG_MYSQL_REMOVALS",
            "PRE_PHP7_REMOVALS",
            "POST_PHP7_REMOVALS",
            "POST_AST_MERGE",
            "PRE_AST_MERGE",
            "POST_64BIT_BRANCH_MERGE",
            "PRE_64BIT_BRANCH_MERGE",
            "POST_PHPNG_MERGE"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9021.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:45.170774614Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2019:2519",
        "https://access.redhat.com/errata/RHSA-2019:3299",
        "https://security.netapp.com/advisory/ntap-20190321-0001/",
        "https://usn.ubuntu.com/3902-1/",
        "https://usn.ubuntu.com/3902-2/",
        "https://www.debian.org/security/2019/dsa-4398",
        "https://bugs.php.net/bug.php?id=77247"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "12.04"
                  },
                  {
                    "last_affected": "12.04"
                  },
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "42.3"
                  },
                  {
                    "last_affected": "42.3"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-9021",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436064,
  "published_at": "2019-02-22T23:29:00.41+00:00"
}