Is CVE-2024-12243 in the CISA KEV catalog?

No. CVE-2024-12243 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-12243?

CVE-2024-12243 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2024-12243?

CVE-2024-12243 has an EPSS score of 1.19% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-12243?

Upgrade gnutls28 on debian 11 to 3.7.1-5+deb11u7 or later. Fixes are available for 26 affected products.

CVE & CISA-KEV Catalog

CVE-2024-12243

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-407

How to fix

Remediation Available

gnutls28Debian

Fixed in:3.7.1-5+deb11u7CVE-2024-12243

Fixed in:3.7.9-2+deb12u4CVE-2024-12243

Fixed in:3.8.9-2CVE-2024-12243

gnutlsRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

gnutlsRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

gnutls-c++Red Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-c++Rocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-c++-debuginfoRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-c++-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-daneRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-daneRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-dane-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-dane-debuginfoRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-debuginfoRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-debugsourceRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-debugsourceRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-develRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-develRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

gnutls-utilsRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

gnutls-utilsRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

gnutls-utils-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

gnutls-utils-debuginfoRocky

Fixed in:0:3.6.16-8.el8_10.3RHSA-2025:4051

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-4.el9_4.2RHSA-2025:8020

Fixed in:0:3.7.6-21.el9_2.4RHSA-2025:17361

Fixed in:0:3.8.3-6.el9RHSA-2025:7076

registry.redhat.io/discovery/discoveryRocky

Fixed in:ui-rhel9@sha256:492e412759cf0eedfa5b557f7b0865f8864f84d0ed75e11dc8d7a840837d9644_amd64RHSA-2025:8385

Fixed in:server-rhel9@sha256:f33991d766b618a128fb99fbe4f9b61c5004f7c6aa73b2b38e28d59e56c64d63_amd64RHSA-2025:8385

Fixed in:ui-rhel9@sha256:c960fa13577db72b52765d6941688f431f61fe38adb717b2d8bb6569e241bc5e_arm64RHSA-2025:8385

Fixed in:server-rhel9@sha256:ad1045aa0de937c3a6969ec377f7bfeda9a44ee434a954e8245e9840316ffc1c_arm64RHSA-2025:8385

registry.redhat.io/discovery/discoveryRed Hat / RHEL

Fixed in:ui-rhel9@sha256:492e412759cf0eedfa5b557f7b0865f8864f84d0ed75e11dc8d7a840837d9644_amd64RHSA-2025:8385

Fixed in:ui-rhel9@sha256:c960fa13577db72b52765d6941688f431f61fe38adb717b2d8bb6569e241bc5e_arm64RHSA-2025:8385

Fixed in:server-rhel9@sha256:f33991d766b618a128fb99fbe4f9b61c5004f7c6aa73b2b38e28d59e56c64d63_amd64RHSA-2025:8385

Fixed in:server-rhel9@sha256:ad1045aa0de937c3a6969ec377f7bfeda9a44ee434a954e8245e9840316ffc1c_arm64RHSA-2025:8385

gnutls28Ubuntu

Fixed in:3.6.13-2ubuntu1.12USN-7281-1

Fixed in:3.7.3-4ubuntu1.6USN-7281-1

Fixed in:3.8.3-1.1ubuntu3.3USN-7281-1

libgnutls30Ubuntu

Fixed in:3.6.13-2ubuntu1.12USN-7281-1

Fixed in:3.7.3-4ubuntu1.6USN-7281-1

libgnutls30t64Ubuntu

Fixed in:3.8.3-1.1ubuntu3.3USN-7281-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

1.19%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Other references13

Embed a live status badge for CVE-2024-12243

Markdown

[![CVE-2024-12243](https://tridentstack.com/cve/badge/CVE-2024-12243.svg)](https://tridentstack.com/cve/CVE-2024-12243)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-12243"><img src="https://tridentstack.com/cve/badge/CVE-2024-12243.svg" alt="CVE-2024-12243"></a>

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-12.