---
cve: "CVE-2024-12243"
severity: "MEDIUM"
cvss: 5.3
epss: "1.3%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2025-02-10 16:15:37"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T00:36:41+02:00"
---

# CVE-2024-12243

> 5.3 MEDIUM

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 40267b5e16b5b418d7781c1c92d160a9bb12925b (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-12243) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_