Skip to content

BCryptGenerateSymmetricKey memory leak

High
gdams published GHSA-29c6-3hcj-89cf Feb 12, 2025

Package

Microsoft build of Go

Affected versions

<= 1.23.6-1
<= 1.22.12-1

Patched versions

1.23.6-2
1.22.12-2
gomod github.com/microsoft/go-crypto-winnative (Go)
v0.0.0-20250110072644-50d2dfac4b70
v0.0.0-20250211154640-f49c8e1379ea

Description

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

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

CVE ID

CVE-2025-25199

Weaknesses

No CWEs

Credits