emqx NanoMQ 0.17.5 Message mqtt_parser.c conn_handler heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in emqx NanoMQ 0.17.5. It has been rated as critical. Affected by this vulnerability is the function conn_handler of the file mqtt_parser.c of the component Message Handler. Performing a manipulation results in heap-based overflow. This vulnerability is identified as CVE-2023-34488. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in emqx NanoMQ 0.17.5. This affects the function conn_handler of the file mqtt_parser.c of the component Message Handler. 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. The summary by CVE is:

NanoMQ 0.17.5 is vulnerable to heap-buffer-overflow in the conn_handler function of mqtt_parser.c when it processes malformed messages.

The weakness was released 06/12/2023 as 1181. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-34488 since 06/07/2023. Technical details of the vulnerability are known, but there is no available exploit.

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 EUVD (EUVD-2023-38545). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

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Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

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

NVD Base Score: 7.8
NVD 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: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/07/2023 🔍
06/12/2023 +5 days 🔍
06/12/2023 +0 days 🔍
01/07/2026 +940 days 🔍

Sourcesinfo

Product: github.com

Advisory: 1181
Status: Confirmed

CVE: CVE-2023-34488 (🔍)
GCVE (CVE): GCVE-0-2023-34488
GCVE (VulDB): GCVE-100-231231
EUVD: 🔍

Entryinfo

Created: 06/12/2023 16:43
Updated: 01/07/2026 11:45
Changes: 06/12/2023 16:43 (41), 07/08/2023 09:24 (11), 01/07/2026 11:45 (16)
Complete: 🔍
Cache ID: 216::103

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