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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.
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Modified Analysis by NIST3/25/2026 4:01:09 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:gnu:gnutls:1.5.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* versions up to (excluding) 3.8.2
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
CVE Modified by Red Hat, Inc.11/28/2023 9:15:07 AM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 [No types assigned]
New CVE Received from Red Hat, Inc.11/28/2023 7:15:07 AM
Action
Type
Old Value
New Value
Added
Description
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.
Added
CVSS V3.1
Red Hat, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Added
CWE
Red Hat, Inc. CWE-203
Added
Reference
Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-5981 [No types assigned]
Added
Reference
Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2248445 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2023-5981 NVD
Published Date: 11/28/2023 NVD
Last Modified: 06/17/2026
Source: Red Hat, Inc.
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