Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.
Metrics
Affected Vendors & Products
References
History
No history.
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Status: PUBLISHED
Assigner: Go
Published:
Updated: 2025-02-13T17:14:00.588Z
Reserved: 2023-10-06T17:06:26.221Z
Link: CVE-2023-45287
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No data.
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Status : Modified
Published: 2023-12-05T17:15:08.570
Modified: 2024-11-21T08:26:42.250
Link: CVE-2023-45287
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