CVE-2023-5981
Gnutls: timing side-channel in the rsa-psk authentication
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-208 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Nov 28, 2023 |
| Last Updated | Feb 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHODF-4.15-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / RHOL-5.8-RHEL-9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0155 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0319 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0399 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0451 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0533 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1383 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2094 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-5981 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2248445 gnutls.org: https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 openwall.com: http://www.openwall.com/lists/oss-security/2024/01/19/3 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2023/11/msg00016.html
Credits
This issue was discovered by Daiki Ueno (Red Hat).