mbed TLS 3.5.1 TLS 1.3 ClientHallo denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in mbed TLS 3.5.1. This affects an unknown function of the component TLS 1.3 ClientHallo Handler. The manipulation results in denial of service. This vulnerability was named CVE-2024-23744. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in mbed TLS 3.5.1. Affected is an unknown part of the component TLS 1.3 ClientHallo Handler. 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. CVE summarizes:

An issue was discovered in Mbed TLS 3.5.1. There is persistent handshake denial if a client sends a TLS 1.3 ClientHello without extensions.

The weakness was presented 01/22/2024 as 8694. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-23744 since 01/21/2024. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 211933 (CBL Mariner 2.0 Security Update: hvloader (CVE-2024-23744)), 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 (211933) and EUVD (EUVD-2024-21200). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 7.5
NVD Vector: 🔍

ADP CISA Base Score: 7.5
ADP CISA 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: 211933
Nessus Name: CBL Mariner 2.0 Security Update: hvloader (CVE-2024-23744)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2024 🔍
01/22/2024 +1 days 🔍
01/22/2024 +0 days 🔍
06/06/2026 +865 days 🔍

Sourcesinfo

Advisory: 8694
Status: Confirmed

CVE: CVE-2024-23744 (🔍)
GCVE (CVE): GCVE-0-2024-23744
GCVE (VulDB): GCVE-100-251688
EUVD: 🔍

Entryinfo

Created: 01/22/2024 07:04
Updated: 06/06/2026 01:46
Changes: 01/22/2024 07:04 (38), 02/16/2024 08:12 (11), 09/13/2024 00:38 (16), 11/28/2024 11:51 (2), 06/04/2025 18:14 (1), 06/06/2026 01:46 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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