A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2023-02-15T00:00:00
Updated: 2024-08-02T05:10:55.597Z
Reserved: 2023-01-18T00:00:00
Link: CVE-2023-0361
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-02-15T18:15:11.683
Modified: 2023-11-07T04:00:17.737
Link: CVE-2023-0361
Redhat