CVE-2023-5981

Gnutls: timing side-channel in the rsa-psk authentication

State: Published
Severity: 5.9 Medium
Published: Nov 28, 2023
Updated: Oct 14, 2026
Reserved: Nov 7, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	redhat

Weaknesses

CWE-208 Observable Timing Discrepancy

Affected Products

Product	Versions
Red Hat Enterprise Linux 8Red Hat	0:3.6.16-8.el8_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:3.6.16-8.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	0:3.6.16-5.el8_6.2 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	0:3.6.16-7.el8_8.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:3.7.6-23.el9_3.3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:3.7.6-23.el9_3.3 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:3.7.6-21.el9_2.1 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-37 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-68 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-39 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-58 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-13 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-81 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-79 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-22 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-57 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-6 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-15 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-15 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-54 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-10 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-26 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-19 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-158 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-21 and laterNot affected
RHODF-4.15-RHEL-9Red Hat	v4.15.0-103 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-22 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-11 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v6.8.1-407 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-19 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.0.0-479 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-7 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.4.0-247 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-5 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.1.0-227 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.1-470 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v2.9.6-14 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-2 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-24 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-10 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-525 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-224 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.28.1-56 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat

References

RHSA-2024:0155vendor-advisory
RHSA-2024:0319vendor-advisory
RHSA-2024:0399vendor-advisory
RHSA-2024:0451vendor-advisory
RHSA-2024:0533vendor-advisory
RHSA-2024:1383vendor-advisory
RHSA-2024:2094vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-5981vdb-entry
RHBZ#2248445issue-tracking
https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23
http://www.openwall.com/lists/oss-security/2024/01/19/3
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/
https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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