The azure-c-shared-utility is a C library for AMQP/MQTT communication to Azure Cloud Services. This library may be used by the Azure IoT C SDK for communication between IoT Hub and IoT Hub devices. An attacker can cause an integer wraparound or under-allocation or heap buffer overflow due to vulnerabilities in parameter checking mechanism, by exploiting the buffer length parameter in Azure C SDK, which may lead to remote code execution. Requirements for RCE are 1. Compromised Azure account allowing malformed payloads to be sent to the device via IoT Hub service, 2. By passing IoT hub service max message payload limit of 128KB, and 3. Ability to overwrite code space with remote code. Fixed in commit https://github.com/Azure/azure-c-shared-utility/commit/1129147c38ac02ad974c4c701a1e01b2141b9fe2.
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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-03-26T02:57:20.769Z

Updated: 2024-08-04T11:26:22.203Z

Reserved: 2024-03-18T17:07:00.095Z

Link: CVE-2024-29195

cve-icon Vulnrichment

Updated: 2024-08-02T01:10:55.203Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-03-26T03:15:13.333

Modified: 2024-03-26T12:55:05.010

Link: CVE-2024-29195

cve-icon Redhat

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