CVE catalog

CVE-2019-9021

UBUNTU-

[CVE catalog]

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.

Severity
Medium · CVSS 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published
Updated
Source
[NVD] · [CVE record]
EPSS
10.06% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Ubuntu18.04php7.27.2.1-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.10-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.15-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.2-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.2-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.3-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.5-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.7-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.7-0ubuntu0.18.04.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.1-5UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.1-6UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.13-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]

Showing 12 observations. All 70 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Ubuntu14.04php55.5.3+dfsg-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.3+dfsg-1ubuntu3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.6+dfsg-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.6+dfsg-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.8+dfsg-2ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.11UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.12UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.13UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.14UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.16UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.17UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.19UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.20UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.21UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.22UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.23UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.24UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.25UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.26UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.27UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.4UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.5UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.6UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.7UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu14.04php55.5.9+dfsg-1ubuntu4.9UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.1-5UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.1-6UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.13-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.15-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.15-0ubuntu0.16.04.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.15-0ubuntu0.16.04.4UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.18-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.2-1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.2-3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.2-4UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.2-5UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.22-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.25-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.28-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.3-2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.3-3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.3-9ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.30-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.32-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.33-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.33-0ubuntu0.16.04.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.4-5ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.4-5ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.4-7ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.4-7ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.4-7ubuntu2.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.8-0ubuntu0.16.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.8-0ubuntu0.16.04.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu16.04php7.07.0.8-0ubuntu0.16.04.3UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.1-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.10-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.15-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.2-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.2-1ubuntu2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.3-1ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.5-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.7-0ubuntu0.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Ubuntu18.04php7.27.2.7-0ubuntu0.18.04.2UnknownSource applicability is not established[UBUNTU-CVE-2019-9021]
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "php5",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.5.9+dfsg-1ubuntu4.27"
            }
          ]
        }
      ],
      "release": "14.04",
      "versions": [
        "5.5.3+dfsg-1ubuntu2",
        "5.5.3+dfsg-1ubuntu3",
        "5.5.6+dfsg-1ubuntu1",
        "5.5.6+dfsg-1ubuntu2",
        "5.5.8+dfsg-2ubuntu1",
        "5.5.9+dfsg-1ubuntu1",
        "5.5.9+dfsg-1ubuntu2",
        "5.5.9+dfsg-1ubuntu3",
        "5.5.9+dfsg-1ubuntu4",
        "5.5.9+dfsg-1ubuntu4.1",
        "5.5.9+dfsg-1ubuntu4.2",
        "5.5.9+dfsg-1ubuntu4.3",
        "5.5.9+dfsg-1ubuntu4.4",
        "5.5.9+dfsg-1ubuntu4.5",
        "5.5.9+dfsg-1ubuntu4.6",
        "5.5.9+dfsg-1ubuntu4.7",
        "5.5.9+dfsg-1ubuntu4.9",
        "5.5.9+dfsg-1ubuntu4.11",
        "5.5.9+dfsg-1ubuntu4.12",
        "5.5.9+dfsg-1ubuntu4.13",
        "5.5.9+dfsg-1ubuntu4.14",
        "5.5.9+dfsg-1ubuntu4.16",
        "5.5.9+dfsg-1ubuntu4.17",
        "5.5.9+dfsg-1ubuntu4.19",
        "5.5.9+dfsg-1ubuntu4.20",
        "5.5.9+dfsg-1ubuntu4.21",
        "5.5.9+dfsg-1ubuntu4.22",
        "5.5.9+dfsg-1ubuntu4.23",
        "5.5.9+dfsg-1ubuntu4.24",
        "5.5.9+dfsg-1ubuntu4.25",
        "5.5.9+dfsg-1ubuntu4.26"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-9021",
      "fixed_version": "5.5.9+dfsg-1ubuntu4.27",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2019-9021",
      "provider_updated_at": "2026-04-22T12:23:52.718720Z",
      "applicability_unknown": true
    },
    {
      "name": "php7.0",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.33-0ubuntu0.16.04.2"
            }
          ]
        }
      ],
      "release": "16.04",
      "versions": [
        "7.0.1-5",
        "7.0.1-6",
        "7.0.2-1",
        "7.0.2-3",
        "7.0.2-4",
        "7.0.2-5",
        "7.0.3-2",
        "7.0.3-3",
        "7.0.3-9ubuntu1",
        "7.0.4-5ubuntu1",
        "7.0.4-5ubuntu2",
        "7.0.4-7ubuntu1",
        "7.0.4-7ubuntu2",
        "7.0.4-7ubuntu2.1",
        "7.0.8-0ubuntu0.16.04.1",
        "7.0.8-0ubuntu0.16.04.2",
        "7.0.8-0ubuntu0.16.04.3",
        "7.0.13-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.2",
        "7.0.15-0ubuntu0.16.04.4",
        "7.0.18-0ubuntu0.16.04.1",
        "7.0.22-0ubuntu0.16.04.1",
        "7.0.25-0ubuntu0.16.04.1",
        "7.0.28-0ubuntu0.16.04.1",
        "7.0.30-0ubuntu0.16.04.1",
        "7.0.32-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-9021",
      "fixed_version": "7.0.33-0ubuntu0.16.04.2",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2019-9021",
      "provider_updated_at": "2026-04-22T12:23:52.718720Z",
      "applicability_unknown": true
    },
    {
      "name": "php7.2",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.15-0ubuntu0.18.04.1"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "7.2.1-1ubuntu2",
        "7.2.2-1ubuntu1",
        "7.2.2-1ubuntu2",
        "7.2.3-1ubuntu1",
        "7.2.5-0ubuntu0.18.04.1",
        "7.2.7-0ubuntu0.18.04.1",
        "7.2.7-0ubuntu0.18.04.2",
        "7.2.10-0ubuntu0.18.04.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-9021",
      "fixed_version": "7.2.15-0ubuntu0.18.04.1",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2019-9021",
      "provider_updated_at": "2026-04-22T12:23:52.718720Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]