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go-crypto-winnative BCryptGenerateSymmetricKey memory leak

High severity GitHub Reviewed Published Feb 12, 2025 in microsoft/go-crypto-winnative • Updated Feb 12, 2025

Package

gomod github.com/microsoft/go-crypto-winnative (Go)

Affected versions

< 0.0.0-20250211154640-f49c8e1379ea

Patched versions

0.0.0-20250211154640-f49c8e1379ea

Description

Calls to cng.TLS1PRF don't release the key handle, producing a small memory leak every time.

References

@gdams gdams published to microsoft/go-crypto-winnative Feb 12, 2025
Published by the National Vulnerability Database Feb 12, 2025
Published to the GitHub Advisory Database Feb 12, 2025
Reviewed Feb 12, 2025
Last updated Feb 12, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(11th percentile)

Weaknesses

CVE ID

CVE-2025-25199

GHSA ID

GHSA-29c6-3hcj-89cf

Source code

Credits

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