A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-3660-1 gnutls28 security update
Debian DLA Debian DLA DLA-3740-1 gnutls28 security update
EUVD EUVD EUVD-2023-58248 A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
Ubuntu USN Ubuntu USN USN-6499-1 GnuTLS vulnerability
Ubuntu USN Ubuntu USN USN-6499-2 GnuTLS vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

To address the issue found upgrade to GnuTLS 3.8.2 or later versions.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-06T21:44:57.204Z

Reserved: 2023-11-07T08:05:10.875Z

Link: CVE-2023-5981

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-11-28T12:15:07.040

Modified: 2025-11-04T20:17:14.220

Link: CVE-2023-5981

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-11-15T00:00:00Z

Links: CVE-2023-5981 - Bugzilla

cve-icon OpenCVE Enrichment

No data.