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Medium 5.9Published Nov 28, 2023
CVE-2023-5981Gnutls: timing side-channel in the rsa-psk authentication
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 8 and 10 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 0:3.6.16-8.el8_9 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support redhat:rhel_eus | from 0:3.6.16-5.el8_6.2 not affected | CNA record |
Red Hat RHODF-4.15-RHEL-9 redhat:openshift_data_foundation | from v4.15.0-37 not affected | CNA record |
Red Hat RHOL-5.8-RHEL-9 redhat:logging | from v5.8.6-22 not affected | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
debian debian_linux debian:debian_linux | 10.0 | NVD |
gnu gnutls gnu:gnutls | before 3.8.2 | NVD |
redhat linux redhat:linux | 8.0; 9.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 37; 38 | NVD |
References
- https://access.redhat.com/errata/RHSA-2024:0155vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:0319vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:0399vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:0451vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:0533vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:1383vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2024:2094vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/security/cve/CVE-2023-5981vdb-entry, x-refsource-redhat, third-party-advisory, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2248445issue-tracking, x-refsource-redhat, third-party-advisory
- https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23issue-tracking, vendor-advisory
- http://www.openwall.com/lists/oss-security/2024/01/19/3third-party-advisory
- https://lists.debian.org/debian-lts-announce/2023/11/msg00016.htmlthird-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/broken-link
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/broken-link
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
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