libmodbus 3.1.6 modbus_mapping_free heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in libmodbus 3.1.6. This vulnerability affects the function modbus_mapping_free. The manipulation results in heap-based overflow. This vulnerability was named CVE-2024-36843. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in libmodbus 3.1.6. Affected is the function modbus_mapping_free. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-36843 since 05/30/2024. The exploitability is told to be easy. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 232625 (Debian dla-4084 : libmodbus-dev - 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 vulnerability database at Tenable (232625). 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: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
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: 232625
Nessus Name: Debian dla-4084 : libmodbus-dev - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/30/2024 🔍
05/31/2024 +1 days 🔍
05/31/2024 +0 days 🔍
05/01/2025 +335 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2024-36843 (🔍)
GCVE (CVE): GCVE-0-2024-36843
GCVE (VulDB): GCVE-100-266808

Entryinfo

Created: 05/31/2024 21:57
Updated: 05/01/2025 16:03
Changes: 05/31/2024 21:57 (50), 06/03/2024 16:59 (1), 08/22/2024 21:19 (12), 03/12/2025 07:33 (2), 05/01/2025 16:03 (1)
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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