Security advisory

{
  "id": "08754c62e3c7fcd7d57ebb5e6ac2cbf958d32a597871a4d6469f422bee8eacc4",
  "url": "https://osv.dev/vulnerability/CVE-2021-4214",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-4214",
    "summary": "A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.",
    "evidence": "osv:CVE-2021-4214",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-4214",
      "aliases": [
        "CVE-2021-4214"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pnggroup/libpng",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c53778ff53a73ad2d676602f5dc7019566be5058"
                },
                {
                  "last_affected": "c53778ff53a73ad2d676602f5dc7019566be5058"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libpng:libpng:1.6.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.6.0-NA"
                      },
                      {
                        "last_affected": "1.6.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.6.0-NA",
            "v1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4214.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:43.007673765Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/security/cve/CVE-2021-4214",
        "https://security-tracker.debian.org/tracker/CVE-2021-4214",
        "https://security.netapp.com/advisory/ntap-20221020-0001/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2043393",
        "https://github.com/glennrp/libpng/issues/302"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:libpng:libpng:1.6.0:-:*:*:*:*:*:*"
            ],
            "vendor_product": "libpng:libpng",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.6.0-NA"
                  },
                  {
                    "last_affected": "1.6.0-NA"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-4214",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442527,
  "published_at": "2022-08-24T16:15:10.037+00:00"
}