CVE-2018-8531 Memory corruption in Azure IoT Edge
Remote attackers can execute arbitrary code via memory corruption in the Azure IoT Hub Device Client SDK using MQTT.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-8531?
CVE-2018-8531 is a high-severity memory corruption vulnerability in Microsoft Azure IoT Edge, published on 10 Oct 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A remote code execution vulnerability exists in the way that Azure IoT Hub Device Client SDK using MQTT protocol accesses objects in memory, aka "Azure IoT Device Client SDK Memory Corruption Vulnerability." This affects Hub Device Client SDK, Azure IoT Edge.
Weakness: CWE-787
Which versions are affected by CVE-2018-8531?
It affects 2 products.
Products include Microsoft Azure Internet of Things Edge, Microsoft Csharp Software Development Kit.
How do I fix CVE-2018-8531?
No fix has been published for CVE-2018-8531 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-8531 being exploited?
There is no known exploitation of CVE-2018-8531 in the wild and no public exploit code.
Sources
Also known as GHSA-x6h5-845f-rv5f.