CVE-2025-25199: go-crypto-winnative BCryptGenerateSymmetricKey memory leak

February 12, 2025

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

References

github.com/advisories/GHSA-29c6-3hcj-89cf
github.com/microsoft/go-crypto-winnative
github.com/microsoft/go-crypto-winnative/commit/f49c8e1379ea4b147d5bff1b3be5b0ff45792e41
github.com/microsoft/go-crypto-winnative/security/advisories/GHSA-29c6-3hcj-89cf
nvd.nist.gov/vuln/detail/CVE-2025-25199

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