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.
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References
History
No history.
MITRE
Status: PUBLISHED
Assigner: Go
Published: 2023-12-05T16:18:06.104Z
Updated: 2024-08-02T20:21:15.309Z
Reserved: 2023-10-06T17:06:26.221Z
Link: CVE-2023-45287
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-12-05T17:15:08.570
Modified: 2024-01-12T14:15:48.310
Link: CVE-2023-45287
Redhat