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Vulnerability · Published Feb 10, 2025 · Assigned by redhat

CVE-2024-12243Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos

Medium 5.3

In plain English

A medium-severity security flaw in gnutls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.3%top 29.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8gnutls3.6.16-8.el8_10.3ALSA-2025:4051
AlmaLinux:9gnutls3.8.3-6.el9ALSA-2025:7076
AlmaLinux:8gnutls-c++3.6.16-8.el8_10.3ALSA-2025:4051
AlmaLinux:9gnutls-c++3.8.3-6.el9ALSA-2025:7076
AlmaLinux:8gnutls-dane3.6.16-8.el8_10.3ALSA-2025:4051
AlmaLinux:9gnutls-dane3.8.3-6.el9ALSA-2025:7076
AlmaLinux:8gnutls-devel3.6.16-8.el8_10.3ALSA-2025:4051
AlmaLinux:9gnutls-devel3.8.3-6.el9ALSA-2025:7076
AlmaLinux:8gnutls-utils3.6.16-8.el8_10.3ALSA-2025:4051
AlmaLinux:9gnutls-utils3.8.3-6.el9ALSA-2025:7076
Alpine:v3.20gnutls3.8.12-r0ALPINE-CVE-2024-12243
Alpine:v3.21gnutls3.8.12-r0ALPINE-CVE-2024-12243
Alpine:v3.22gnutls3.8.12-r0ALPINE-CVE-2024-12243
Alpine:v3.23gnutls3.8.11-r0ALPINE-CVE-2024-12243
Alpine:v3.24gnutls3.8.11-r0ALPINE-CVE-2024-12243
Debian:12gnutls283.7.9-2+deb12u4DSA-5867-1
Debian:12gnutls283.7.9-2+deb12u4DEBIAN-CVE-2024-12243
Debian:13gnutls283.8.9-2DEBIAN-CVE-2024-12243
Debian:14gnutls283.8.9-2DEBIAN-CVE-2024-12243
Rocky Linux:8gnutls0:3.6.16-8.el8_10.3RLSA-2025:4051
Rocky Linux:9gnutls0:3.8.3-6.el9RLSA-2025:7076
Ubuntu:22.04:LTSgnutls283.7.3-4ubuntu1.6USN-7281-1
Ubuntu:22.04:LTSgnutls283.7.3-4ubuntu1.6UBUNTU-CVE-2024-12243
Ubuntu:24.04:LTSgnutls283.8.3-1.1ubuntu3.3UBUNTU-CVE-2024-12243
Ubuntu:24.04:LTSgnutls283.8.3-1.1ubuntu3.3USN-7281-1

Affected products (as reported)

VendorProductVersions
gnutls 0 – through 3.6.163.7.0 – through 3.7.113.8.0 – before 3.8.8
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Discovery 1.14 see references
Red Hat Red Hat Discovery 1.14 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat OpenShift Container Platform 4 see references

Weakness: CWE-407 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References