CVE-2025-25199

BCryptGenerateSymmetricKey memory leak

Published Feb 12, 2025 CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed
Description
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-4085 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.
Github GHSA Github GHSA GHSA-29c6-3hcj-89cf go-crypto-winnative BCryptGenerateSymmetricKey memory leak
History
Type Values Removed Values Added
Metrics epss

{'score': 0.01924}

epss

{'score': 0.02348}

Type Values Removed Values Added
Metrics epss

{'score': 0.02115}

epss

{'score': 0.01924}

Type Values Removed Values Added
Metrics epss

{'score': 0.02625}

epss

{'score': 0.02115}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title BCryptGenerateSymmetricKey memory leak
Weaknesses CWE-401
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Subscriptions

No data.

Weaknesses
  • CWE-401

    Missing Release of Memory after Effective Lifetime

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 12, 2025, 7:50 PM
Reserved
Feb 3, 2025, 7:30 PM
Status
Deferred
Published
Feb 12, 2025, 6:15 PM
Modified
Jun 17, 2026, 9:00 AM