Security advisory

{
  "id": "d01b1dfb8b83ce5ee42663eaa6b8789c85d51f95ee7d39f6814064f6c954479c",
  "url": "https://osv.dev/vulnerability/CVE-2017-9502",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-9502",
    "summary": "In curl before 7.54.1 on Windows and DOS, libcurl's default protocol function, which is the logic that allows an application to set which protocol libcurl should attempt to use when given a URL without a scheme part, had a flaw that could lead to it overwriting a heap based memory buffer with seven bytes. If the default protocol is specified to be FILE or a file: URL lacks two slashes, the given \"URL\" starts with a drive letter, and libcurl is built for Windows or DOS, then libcurl would copy the path 7 bytes off, so that the end of the given path would write beyond the malloc buffer (7 bytes being the length in bytes of the ascii string \"file://\").",
    "evidence": "osv:CVE-2017-9502",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-9502",
      "aliases": [
        "CURL-CVE-2017-9502",
        "CVE-2017-9502"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/curl/curl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "d957e2189fdc73cef0ff3d1fb58043d354754449"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "7.54.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "curl-7_54_0",
            "curl-7_53_1",
            "curl-7_53_0",
            "curl-7_52_1",
            "curl-7_52_0",
            "curl-7_51_0",
            "curl-7_50_3",
            "curl-7_50_2",
            "curl-7_50_1",
            "curl-7_50_0",
            "curl-7_49_1",
            "curl-7_49_0",
            "curl-7_48_0",
            "curl-7_47_1",
            "curl-7_47_0",
            "curl-7_46_0",
            "curl-7_45_0",
            "curl-7_44_0",
            "curl-7_43_0",
            "curl-7_42_0",
            "curl-7_41_0",
            "curl-7_40_0",
            "curl-7_39_0",
            "curl-7_38_0",
            "curl-7_37_1",
            "curl-7_37_0",
            "curl-7_36_0",
            "curl-7_35_0",
            "curl-7_34_0",
            "curl-7_33_0",
            "curl-7_32_0",
            "curl-7_31_0",
            "curl-7_30_0",
            "curl-7_29_0",
            "curl-7_28_1",
            "curl-7_28_0",
            "curl-7_27_0",
            "curl-7_26_0",
            "curl-7_25_0",
            "curl-7_23_1",
            "curl-7_23_0",
            "curl-7_22_0",
            "curl-7_21_7",
            "curl-7_21_6",
            "curl-7_21_5",
            "curl-7_21_4",
            "curl-7_21_3",
            "curl-7_21_2",
            "curl-7_21_1",
            "curl-7_21_0",
            "curl-7_20_1",
            "curl-7_20_0",
            "curl-7_19_7",
            "curl-7_19_6",
            "curl-7_19_5",
            "curl-7_19_4",
            "curl-7_19_3",
            "curl-7_19_2",
            "curl-7_19_1",
            "curl-7_19_0",
            "curl-7_18_2",
            "curl-7_18_1",
            "curl-7_18_0",
            "curl-7_17_1",
            "curl-7_17_0",
            "curl-7_17_0-preldapfix",
            "curl-7_16_4",
            "curl-7_16_3",
            "curl-7_16_2",
            "curl-7_16_1",
            "curl-7_16_0",
            "curl-7_15_6-prepipeline",
            "curl-7_15_5",
            "curl-7_15_4",
            "curl-7_15_3",
            "curl-7_15_2",
            "curl-7_15_1",
            "curl-7_15_0",
            "curl-7_14_1",
            "curl-7_14_0",
            "curl-7_13_2",
            "curl-7_13_1",
            "before_ftp_statemachine",
            "curl-7_13_0",
            "curl-7_12_3",
            "curl-7_12_2",
            "curl-7_12_1",
            "curl-7_12_0",
            "curl-7_11_2",
            "curl-7_11_1",
            "curl-7_11_0",
            "curl-7_10_8",
            "curl-7_10_7",
            "curl-7_10_6",
            "curl-7_10_5",
            "curl-7_10_4",
            "curl-7_10_3",
            "curl-7_10_2",
            "curl-7_10_1",
            "curl-7_10",
            "curl-7_9_8",
            "curl-7_9_7",
            "curl-7_9_7-pre2",
            "curl-7_9_6",
            "curl-7_9_5",
            "curl-7_9_5-pre4",
            "curl-7_9_5-pre2",
            "curl-7_9_4",
            "curl-7_9_3",
            "curl-7_9_3-pre3",
            "curl-7_9_3-pre2",
            "curl-7_9_3-pre1",
            "curl-7_9_2",
            "curl-7_9_1",
            "curl-7_9",
            "before_urldata_rename",
            "curl-7_8_1",
            "curl-7_8_1-pre3",
            "curl-7_8",
            "curl-7_8-pre2",
            "curl-7_7_3",
            "curl-7_7_2",
            "curl-7_7_1",
            "curl-7_7",
            "curl-7_7-beta5",
            "curl-7_7-beta3",
            "curl-7_7-beta2",
            "curl-7_7-beta1",
            "curl-7_7_alpha2",
            "curl-7_6_1",
            "curl-7_6_1-pre3",
            "curl-7_6_1-pre2",
            "curl-7_6_1-pre1",
            "curl-7_6",
            "curl-7_6-pre4",
            "curl_7_6-pre3",
            "curl-7_5_2",
            "curl-7_5",
            "curl-7_4_1",
            "curl-7_3",
            "curl-7_2",
            "curl-7_1_1",
            "curl-6_5_2",
            "curl-6_5_1",
            "curl-6_5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9502.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:57.144897556Z",
      "provider": "osv",
      "references": [
        "https://curl.haxx.se/docs/adv_20170614.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-9502",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438797,
  "published_at": "2017-06-14T13:29:00.747+00:00"
}