<p>Upgrade <code>Centos:8</code> <code>gnutls</code> to version 0:3.6.16-6.el8_7 or higher.</p>

Improper Protection Against Physical Side Channels Affecting gnutls package, versions <0:3.6.16-6.el8_7

Snyk CVSS

Attack Complexity High

Confidentiality High

Integrity High

Threat Intelligence

EPSS 0.15% (51^st percentile)

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Snyk ID SNYK-CENTOS8-GNUTLS-3320782
published 15 Feb 2023
disclosed 14 Feb 2023

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Introduced: 14 Feb 2023

CVE-2023-0361 Open this link in a new tab CWE-1300 Open this link in a new tab CWE-203 Open this link in a new tab

How to fix?

Upgrade Centos:8 gnutls to version 0:3.6.16-6.el8_7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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.