Security advisory

{
  "id": "7c927325beefeebd56531779f1c513b515a4e5c30a74e95fed0c0d19614ed27b",
  "url": "https://osv.dev/vulnerability/CVE-2017-8816",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-8816",
    "summary": "The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields.",
    "evidence": "osv:CVE-2017-8816",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-8816",
      "aliases": [
        "CURL-CVE-2017-8816",
        "CVE-2017-8816"
      ],
      "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/curl/curl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "c514af5a4f5ac3ce724065cc6a8e009373436f78"
                },
                {
                  "introduced": "4f041c9d6e61829310eb0715d8edb2a232478123"
                },
                {
                  "last_affected": "c514af5a4f5ac3ce724065cc6a8e009373436f78"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "7.56.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.36.0"
                      },
                      {
                        "last_affected": "7.56.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "curl-7_56_1",
            "curl-7_56_0",
            "curl-7_55_1",
            "curl-7_55_0",
            "curl-7_54_1",
            "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"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-8816.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:59.378562815Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:3558",
        "https://curl.haxx.se/docs/adv_2017-12e7.html",
        "https://security.gentoo.org/glsa/201712-04",
        "https://www.debian.org/security/2017/dsa-4051"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-8816",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439293,
  "published_at": "2017-11-29T18:29:00.3+00:00"
}