Security advisory

{
  "id": "1f0d886a57213bfd23ce9a30a5e5c7c3fe0fcf819cf6ec1c70e41d663168e81e",
  "url": "https://osv.dev/vulnerability/CVE-2016-8670",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-8670",
    "summary": "Integer signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted imagecreatefromstring call.",
    "evidence": "osv:CVE-2016-8670",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2016-8670",
      "aliases": [
        "CVE-2016-8670"
      ],
      "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/libgd/libgd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "46ceef5970bf3a847ff61d1bdde7501d66c11d0c"
                },
                {
                  "fixed": "53110871935244816bbb9d131da0bccff734bfe9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libgd:libgd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.2.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "53110871935244816bbb9d131da0bccff734bfe9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "gd-2.2.3",
            "gd-2.2.2",
            "gd-2.2.1",
            "gd-2.2.0",
            "gd-2.1.1",
            "gd-2.1.0",
            "gd-2.1.0-rc1",
            "gd-2.1.0-alpha1",
            "GD_2_0_34RC1",
            "GD_2_0_33",
            "GD_2_0_32",
            "GD_2_0_31",
            "GD_2_0_30",
            "GD_2_0_29",
            "GD_2_0_28",
            "GD_2_0_27",
            "GD_2_0_26",
            "GD_2_0_25",
            "GD_2_0_24",
            "GD_2_0_23",
            "GD_2_0_22",
            "GD_2_0_21",
            "GD_2_0_20",
            "GD_2_0_19",
            "GD_2_0_18",
            "GD_2_0_17",
            "GD_2_0_15",
            "GD_2_0_14",
            "GD_2_0_13",
            "GD_2_0_12",
            "GD_2_0_11",
            "GD_2_0_10",
            "GD_2_0_9",
            "GD_2_0_8",
            "GD_2_0_7",
            "GD_2_0_6",
            "GD_2_0_5",
            "GD_2_0_4",
            "GD_2_0_3",
            "GD_2_0_2",
            "GD_2_0_1",
            "GD_2_0_0",
            "GD_1_8_4",
            "GD_1_8_3",
            "GD_1_8_1",
            "GD_1_8_0",
            "GD_1_7_3",
            "GD_1_7_2",
            "GD_1_7_1",
            "GD_1_7_0",
            "GD_1_6_3",
            "GD_1_6_2",
            "GD_1_6_1",
            "GD_1_6_0",
            "GD_1_5_0",
            "GD_1_4_0",
            "GD_1_3_0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-8670.json",
            "vanir_signatures": [
              {
                "id": "CVE-2016-8670-3d3e92c2",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "280907635132757771241862687565417004148",
                    "208842456801732773520546011691672006005",
                    "224355342728290647457311352560791226710",
                    "70399781530177195079853539260536064350"
                  ]
                },
                "source": "https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9",
                "target": {
                  "file": "src/gd_io_dp.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2016-8670-5e33e159",
                "digest": {
                  "length": 403,
                  "function_hash": "172048093719602568786569527999506068490"
                },
                "source": "https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9",
                "target": {
                  "file": "src/gd_io_dp.c",
                  "function": "dynamicGetbuf"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:12:47Z"
          }
        }
      ],
      "modified": "2026-10-20T13:12:47.972514246Z",
      "provider": "osv",
      "references": [
        "https://support.f5.com/csp/article/K21336065?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://bugs.php.net/bug.php?id=73280",
        "https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-8670",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387309,
  "published_at": "2017-01-04T20:59:00.293+00:00"
}