CVE-2023-0361

Published Feb 15, 2023

Last updated 7 days ago

CVSS high 7.4
Tls

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
Products
gnutls, enterprise_linux, debian_linux, fedora, active_iq_unified_manager, converged_systems_advisor_agent, ontap_select_deploy_administration_utility

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
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-203

Social media

Hype score
Not currently trending

Configurations

Related CVEs

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References

Sources include official advisories and independent security research.