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High

NTLM Buffer Overflow

Type: advisorySources: OSV

libcurl's NTLM function can overflow a stack-based buffer if given a too long username or domain name. This would happen if you enable NTLM authentication and either: A - pass in a username and domain name to libcurl that together are longer than 192 bytes B - allow (lib)curl to follow HTTP "redirects" (Location: and the appropriate HTTP 30x response code) and the new URL contains a URL with a username and domain name that together are longer than 192 bytes

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2005-3185
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 14:10 UTC · Revision 1

Source evidence

NTLM Buffer Overflow

core-osv · Original source

Published 13 Oct 2005, 08:00 UTC

libcurl's NTLM function can overflow a stack-based buffer if given a too long username or domain name. This would happen if you enable NTLM authentication and either: A - pass in a username and domain name to libcurl that together are longer than 192 bytes B - allow (lib)curl to follow HTTP "redirects" (Location: and the appropriate HTTP 30x response code) and the new URL contains a URL with a username and domain name that together are longer than 192 bytes

osv:CURL-CVE-2005-3185
Complete source record
{
  "id": "401a8d9c8128f274ecc0d2f904a85088a63de33687bdc92efc42ea47dfe02f54",
  "url": "https://osv.dev/vulnerability/CURL-CVE-2005-3185",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "NTLM Buffer Overflow",
    "summary": "libcurl's NTLM function can overflow a stack-based buffer if given a too long username or domain name. This would happen if you enable NTLM authentication and either: A - pass in a username and domain name to libcurl that together are longer than 192 bytes B - allow (lib)curl to follow HTTP \"redirects\" (Location: and the appropriate HTTP 30x response code) and the new URL contains a URL with a username and domain name that together are longer than 192 bytes",
    "evidence": "osv:CURL-CVE-2005-3185",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CURL-CVE-2005-3185",
      "aliases": [
        "CURL-CVE-2005-3185",
        "CVE-2005-3185"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "7.10.6"
                },
                {
                  "fixed": "7.15.0"
                }
              ]
            },
            {
              "repo": "https://github.com/curl/curl.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bdb5e5a25037a585e0ec6b83d29b25961c6823f8"
                },
                {
                  "fixed": "943aea62679fb9f2d6d7abe59b5edcba21490c52"
                }
              ]
            }
          ],
          "versions": [
            "7.14.1",
            "7.14.0",
            "7.13.2",
            "7.13.1",
            "7.13.0",
            "7.12.3",
            "7.12.2",
            "7.12.1",
            "7.12.0",
            "7.11.2",
            "7.11.1",
            "7.11.0",
            "7.10.8",
            "7.10.7",
            "7.10.6",
            "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"
          ],
          "database_specific": {
            "source": "https://curl.se/docs/CURL-CVE-2005-3185.json",
            "vanir_signatures": [
              {
                "id": "CURL-CVE-2005-3185-90a25c7b",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "171114046798777151270719067410152303371",
                    "290753497773825416687583203876565458288",
                    "75455037029382482363366612127796244813"
                  ]
                },
                "source": "https://github.com/curl/curl.git/commit/943aea62679fb9f2d6d7abe59b5edcba21490c52",
                "target": {
                  "file": "lib/http_ntlm.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CURL-CVE-2005-3185-ea12ec00",
                "digest": {
                  "length": 6942,
                  "function_hash": "238977671527874511677942108580874230893"
                },
                "source": "https://github.com/curl/curl.git/commit/943aea62679fb9f2d6d7abe59b5edcba21490c52",
                "target": {
                  "file": "lib/http_ntlm.c",
                  "function": "Curl_output_ntlm"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-26T13:07:50Z"
          }
        }
      ],
      "modified": "2026-10-26T13:07:50.698655336Z",
      "provider": "osv",
      "references": [],
      "provider_metadata": {
        "CWE": {
          "id": "CWE-121",
          "desc": "Stack-based Buffer Overflow"
        },
        "URL": "https://curl.se/docs/CVE-2005-3185.json",
        "www": "https://curl.se/docs/CVE-2005-3185.html",
        "affects": "both",
        "package": "curl",
        "severity": "High",
        "last_affected": "7.14.1"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2005-3185",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 453271,
  "published_at": "2005-10-13T08:00:00+00:00"
}