CVE-2023-0361

Published Feb 15, 2023

Last updated a year ago

Overview

Description: 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.
Source: secalert@redhat.com
NVD status: Modified

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.4
Impact score: 5.2
Exploitability score: 2.2
Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: HIGH

Weaknesses

nvd@nist.gov: CWE-203

Configurations

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Overview

Social media

Risk scores

CVSS 3.1

Weaknesses

Configurations

References