Information Exposure Affecting libgnutlsxx28 package, versions <3.6.7-150000.6.50.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.24% (62nd percentile)

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  • Snyk IDSNYK-SLES151-LIBGNUTLSXX28-6138034
  • published22 Dec 2023
  • disclosed21 Dec 2023

Introduced: 21 Dec 2023

CVE-2023-0361  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 libgnutlsxx28 to version 3.6.7-150000.6.50.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgnutlsxx28 package and not the libgnutlsxx28 package as distributed by SLES. See How to fix? for SLES:15.1 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.

CVSS Scores

version 3.1