CVE-2024-12243Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 8 and 18 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 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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-407
- 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
- Not yet received
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 0:3.6.16-8.el8_10.3 not affected | CNA record |
from 0:3.7.6-21.el9_2.4 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:3.8.3-4.el9_4.2 not affected | CNA record |
Red Hat Red Hat Discovery 1.14 redhat:discovery | from sha256:ad1045aa0de937c3a6969ec377f7bfeda9a44ee434a954e8245e9840316ffc1c not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | 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 V3.1.5 | 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 V3.1.5 | 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 V3.1.5 | CISA ADP |
Siemens RUGGEDCOM ROX MX5000 siemens:ruggedcom_rox_mx5000 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX MX5000RE siemens:ruggedcom_rox_mx5000re (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1400 siemens:ruggedcom_rox_rx1400 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1500 siemens:ruggedcom_rox_rx1500 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1501 siemens:ruggedcom_rox_rx1501 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1510 siemens:ruggedcom_rox_rx1510 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1511 siemens:ruggedcom_rox_rx1511 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1512 siemens:ruggedcom_rox_rx1512 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1524 siemens:ruggedcom_rox_rx1524 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX1536 siemens:ruggedcom_rox_rx1536 (from the name) | before V2.17.0 | CISA ADP |
Siemens RUGGEDCOM ROX RX5000 siemens:ruggedcom_rox_rx5000 (from the name) | before V2.17.0 | CISA ADP |
References
- https://access.redhat.com/errata/RHSA-2025:17361vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:4051vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:7076vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:8020vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:8385vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2024-12243vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2344615issue-tracking, x-refsource-redhat
- https://gitlab.com/gnutls/gnutls/-/issues/1553
- https://gitlab.com/gnutls/libtasn1/-/issues/52
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.