CVE-2024-12133

MEDIUM

5.3

CVSS v3

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.

CWE-407

How to fix

Remediation Available

libtasn1-6Debian

Fixed in:4.16.0-2+deb11u2CVE-2024-12133

Fixed in:4.19.0-2+deb12u1CVE-2024-12133

Fixed in:4.20.0-1CVE-2024-12133

gnutlsRocky

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutlsRed Hat / RHEL

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-c++Red Hat / RHEL

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-c++Rocky

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-c++-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

gnutls-c++-debuginfoRocky

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-daneRocky

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-daneRed Hat / RHEL

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-dane-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

gnutls-dane-debuginfoRocky

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-debuginfoRocky

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-debugsourceRed Hat / RHEL

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

gnutls-debugsourceRocky

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

gnutls-develRed Hat / RHEL

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-develRocky

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-utilsRocky

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-utilsRed Hat / RHEL

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-utils-debuginfoRed Hat / RHEL

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

gnutls-utils-debuginfoRocky

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-5.el8_6.5RHSA-2026:30849

Fixed in:0:3.6.14-10.el8_4.1RHSA-2026:33125

Fixed in:0:3.6.16-7.el8_8.4RHSA-2026:30850

libtasn1Rocky

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

libtasn1Red Hat / RHEL

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

libtasn1-debuginfoRocky

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

libtasn1-debuginfoRed Hat / RHEL

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

libtasn1-debugsourceRed Hat / RHEL

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

libtasn1-debugsourceRocky

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

libtasn1-develRocky

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

libtasn1-develRed Hat / RHEL

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

libtasn1-toolsRocky

Fixed in:0:4.13-3.el8_4.1RHSA-2026:33125

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

Fixed in:0:4.13-4.el8_8.1RHSA-2026:30850

Fixed in:0:4.13-3.el8_6.2RHSA-2026:30849

Fixed in:0:4.13-5.el8_10RHSA-2025:4049

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

1.09%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Other references17

Related Vulnerabilities

Other CWE-407 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27223	Medium	5.2	78%	-	Fix
CVE-2022-36021	Medium	5.5	60%	-	Fix
CVE-2021-33582	High	7.5	3.1%	-	Fix
CVE-2024-43485	High	7.5	3.1%	-	Fix
CVE-2024-43484	High	7.5	2.9%	-	Fix
CVE-2016-10396	High	7.5	2.9%	-	-

Common questions

How do I fix CVE-2024-12133?

Published advisories record a fix for 37 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2024-12133 being actively exploited?

Not that we know of. CVE-2024-12133 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 63% of all scored CVEs.

How severe is CVE-2024-12133?

CVE-2024-12133 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-12133 affect?

Published advisories record a fix for libtasn1-6 (Debian), gnutls (Rocky), gnutls (Red Hat / RHEL), gnutls-c++ (Red Hat / RHEL), and 33 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2024-12133

Markdown

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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 2026-06-30.