Description
A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate, causing a denial of service attack.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| — | — | < 4.20.0 |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — |
| Red Hat | Red Hat Discovery 1.14 | — |
| Red Hat | Red Hat Discovery 1.14 | — |
| 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 | — |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.5, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.5, < * |
| Siemens | RUGGEDCOM ROX MX5000 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX MX5000RE | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1400 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1500 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1501 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1510 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1511 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1512 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1524 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX1536 | < V2.17.0 |
| Siemens | RUGGEDCOM ROX RX5000 | < V2.17.0 |
References
- https://access.redhat.com/errata/RHSA-2025:17347
- https://access.redhat.com/errata/RHSA-2025:4049
- https://access.redhat.com/errata/RHSA-2025:7077
- https://access.redhat.com/errata/RHSA-2025:8021
- https://access.redhat.com/errata/RHSA-2025:8385
- https://access.redhat.com/errata/RHSA-2026:30849
- https://access.redhat.com/errata/RHSA-2026:30850
- https://access.redhat.com/errata/RHSA-2026:33125
- https://access.redhat.com/security/cve/CVE-2024-12133
- https://bugzilla.redhat.com/show_bug.cgi?id=2344611
- https://gitlab.com/gnutls/libtasn1/-/blob/master/doc/security/CVE-2024-12133.md
- https://gitlab.com/gnutls/libtasn1/-/issues/52
- http://www.openwall.com/lists/oss-security/2025/02/06/6
- https://lists.debian.org/debian-lts-announce/2025/02/msg00025.html
- https://security.netapp.com/advisory/ntap-20250523-0003/
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-202008.html
Timeline
- Published
- Feb 10, 2025
- Last modified
- Nov 5, 2026
- NVD status
- Deferred