GnuTLS DER Decoding denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in GnuTLS. It has been rated as problematic. The impacted element is an unknown function of the component DER Decoding. Performing a manipulation results in denial of service. This vulnerability is identified as CVE-2024-12243. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in GnuTLS (version unknown). It has been classified as problematic. This affects an unknown function of the component DER Decoding. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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.

It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2024-12243 since 12/05/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 216403 (Debian dsa-5867 : gnutls-bin - security update), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (216403) and CERT Bund (WID-SEC-2025-0302). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • NetApp ActiveIQ Unified Manager
  • Siemens SIMATIC S7
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source GnuTLS
  • Red Hat OpenShift
  • IBM MQ
  • IBM App Connect Enterprise
  • IBM TXSeries
  • IBM QRadar SIEM

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216403
Nessus Name: Debian dsa-5867 : gnutls-bin - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/05/2024 🔍
02/10/2025 +67 days 🔍
02/10/2025 +0 days 🔍
10/06/2025 +238 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2024-12243 (🔍)
GCVE (CVE): GCVE-0-2024-12243
GCVE (VulDB): GCVE-100-295071
CERT Bund: WID-SEC-2025-0302 - GnuTLS: Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 02/10/2025 10:09
Updated: 10/06/2025 12:21
Changes: 02/10/2025 10:09 (50), 02/18/2025 05:27 (2), 02/22/2025 04:31 (11), 10/06/2025 12:21 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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