CVE-2025-25199CWE-401

BCryptGenerateSymmetricKey memory leak

High · published February 12, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
73.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01442 · 73.0th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2025-02-12T17:49Z
EPSS history
Timeline
  • 12 FEB 17:49Z
    BCryptGenerateSymmetricKey memory leak
    cvelistv5