CVE-2024-12243
Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
At a glance
- Severity
- MEDIUM 5.3
- EPSS
- EPSS 1.29 % · percentile 70 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Deferred
Description
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | redhat |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · secalert@redhat.com (Secondary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2024-50709
- GCVE · GCVE-0-2024-12243
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0281 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0218 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0864 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0760 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0693 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0671 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0524 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0492 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| gnutls | affected 0 ≤ 3.6.16 ; affected 3.7.0 ≤ 3.7.11 ; affected 3.8.0 < 3.8.8 ; unaffected 3.8.9 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.3 < * |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.3 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:3.8.3-6.el9 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:3.8.3-6.el9 < * |
| Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:3.7.6-21.el9_2.4 < * |
| Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 0:3.8.3-4.el9_4.2 < * |
| Red Hat · Red Hat Discovery 1.14 | unaffected 1.14.3-1748529279 < * |
| Red Hat · Red Hat Discovery 1.14 | unaffected 1.14.2-1748467619 < * |
| Red Hat · Red Hat Enterprise Linux 10 | |
| Red Hat · Red Hat Enterprise Linux 6 | |
| Red Hat · Red Hat Enterprise Linux 7 | |
| Red Hat · Red Hat OpenShift Container Platform 4 |
References
- https://access.redhat.com/errata/RHSA-2025:17361
- https://access.redhat.com/errata/RHSA-2025:4051
- https://access.redhat.com/errata/RHSA-2025:7076
- https://access.redhat.com/errata/RHSA-2025:8020
- https://access.redhat.com/errata/RHSA-2025:8385
- https://access.redhat.com/security/cve/CVE-2024-12243
- https://bugzilla.redhat.com/show_bug.cgi?id=2344615
- https://gitlab.com/gnutls/gnutls/-/issues/1553
- https://gitlab.com/gnutls/libtasn1/-/issues/52
- https://lists.debian.org/debian-lts-announce/2025/02/msg00027.html
- https://security.netapp.com/advisory/ntap-20250523-0002/
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-202008.html
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |