BCryptGenerateSymmetricKey memory leak

{
  "id": "2b787794a8c01f330c67869b8512f579ca2ef309db1f6bcdaf61cdaec5346eef",
  "url": "https://osv.dev/vulnerability/CVE-2025-25199",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "BCryptGenerateSymmetricKey memory leak",
    "summary": "go-crypto-winnative Go crypto backend for Windows using Cryptography API: Next Generation (CNG). Prior to commit f49c8e1379ea4b147d5bff1b3be5b0ff45792e41, calls to `cng.TLS1PRF` don't release the key handle, producing a small memory leak every time. Commit f49c8e1379ea4b147d5bff1b3be5b0ff45792e41 contains a fix for the issue. The fix is included in versions 1.23.6-2 and 1.22.12-2 of the Microsoft build of go, as well as in the pseudoversion 0.0.0-20250211154640-f49c8e1379ea of the `github.com/microsoft/go-crypto-winnative` Go package.",
    "evidence": "osv:CVE-2025-25199",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-25199",
      "aliases": [
        "CVE-2025-25199",
        "GHSA-29c6-3hcj-89cf",
        "GO-2025-3461"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/microsoft/go-crypto-winnative",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f49c8e1379ea4b147d5bff1b3be5b0ff45792e41"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "f49c8e1379ea4b147d5bff1b3be5b0ff45792e41"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f49c8e1379ea4b147d5bff1b3be5b0ff45792e41"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-25199.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.304956372Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25199.json",
        "https://github.com/microsoft/go-crypto-winnative/security/advisories/GHSA-29c6-3hcj-89cf",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-25199",
        "https://github.com/microsoft/go-crypto-winnative/commit/f49c8e1379ea4b147d5bff1b3be5b0ff45792e41"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-401"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.23.6-2"
                  },
                  {
                    "fixed": "1.22.12-2"
                  },
                  {
                    "fixed": "0.0.0-20250211154640-f49c8e1379ea"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25199.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-25199",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510853,
  "published_at": "2025-02-12T17:49:58.397+00:00"
}