# CVE-2024-0553: Gnutls: incomplete fix for cve-2023-5981

Status: published. Published: 2024-01-16. Updated: 2026-11-05.

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

-  /  (gnutls): ≥ 3.8.0; < 3.8.3 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gnutls): ≥ 0:3.6.16-8.el8_9.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support (gnutls): ≥ 0:3.6.16-5.el8_6.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support (gnutls): ≥ 0:3.6.16-7.el8_8.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.7.6-23.el9_3.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support (gnutls): ≥ 0:3.7.6-21.el9_2.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/cephcsi-rhel9): ≥ v4.15.0-37; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-core-rhel9): ≥ v4.15.0-68; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-rhel9-operator): ≥ v4.15.0-39; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-console-rhel9): ≥ v4.15.0-58; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-rhel9-operator): ≥ v4.15.0-13; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-metrics-exporter-rhel9): ≥ v4.15.0-81; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-rhel9-operator): ≥ v4.15.0-79; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-cli-rhel9): ≥ v4.15.0-22; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-console-rhel9): ≥ v4.15.0-57; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-cosi-sidecar-rhel9): ≥ v4.15.0-6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-rhel9-operator): ≥ v4.15.0-15; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-sidecar-rhel9): ≥ v4.15.0-15; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-console-rhel9): ≥ v4.15.0-54; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-rhel9-operator): ≥ v4.15.0-10; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-must-gather-rhel9): ≥ v4.15.0-26; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-rhel9-operator): ≥ v4.15.0-19; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-cluster-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-hub-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-rhel9-operator): ≥ v4.15.0-21; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/rook-ceph-rhel9-operator): ≥ v4.15.0-103; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/cluster-logging-operator-bundle): ≥ v5.8.6-22; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/cluster-logging-rhel9-operator): ≥ v5.8.6-11; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch6-rhel9): ≥ v6.8.1-407; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-operator-bundle): ≥ v5.8.6-19; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-proxy-rhel9): ≥ v1.0.0-479; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-rhel9-operator): ≥ v5.8.6-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/eventrouter-rhel9): ≥ v0.4.0-247; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/fluentd-rhel9): ≥ v5.8.6-5; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/log-file-metric-exporter-rhel9): ≥ v1.1.0-227; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-curator5-rhel9): ≥ v5.8.1-470; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-loki-rhel9): ≥ v2.9.6-14; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-view-plugin-rhel9): ≥ v5.8.6-2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/loki-operator-bundle): ≥ v5.8.6-24; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/loki-rhel9-operator): ≥ v5.8.6-10; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/lokistack-gateway-rhel9): ≥ v0.1.0-525; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/opa-openshift-rhel9): ≥ v0.1.0-224; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/vector-rhel9): ≥ v0.28.1-56; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (gnutls): Version range not reported. Source: CNA: redhat
- Siemens / SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: ≥ 0; < V1.1 (affected, custom). Source: ADP: siemens-SADP

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 1.61% as of 2026-11-04; percentile 76.06%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-203

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2024:0533 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:0627 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:0796 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1082 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1108 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1383 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:2094 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2024-0553 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258412 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://gitlab.com/gnutls/gnutls/-/issues/1522 (CNA: redhat)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html (CNA: redhat)

- http://www.openwall.com/lists/oss-security/2024/01/19/3 (ADP: CVE; x_transferred)

- https://access.redhat.com/errata/RHSA-2024:0533 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:0627 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:0796 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1082 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1108 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1383 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:2094 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/security/cve/CVE-2024-0553 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258412 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://gitlab.com/gnutls/gnutls/-/issues/1522 (ADP: CVE; x_transferred)

- https://lists.debian.org/debian-lts-announce/2024/02/msg00010.html (ADP: CVE; x_transferred)

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ (ADP: CVE; x_transferred)

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ (ADP: CVE; x_transferred)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html (ADP: CVE; x_transferred)

- https://security.netapp.com/advisory/ntap-20240202-0011/ (ADP: CVE; x_transferred)

- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (ADP: siemens-SADP)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-0553; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-0553; retrieved 2026-11-05; source updated Not reported

Revision: 3841e48b3268e0d14d964a48cf2243e8146669509745d6258414ec09e5267964

Canonical: https://y2.dev/cve/CVE-2024-0553

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