CVE-2020-10071 Insufficient publish message length validation in MQTT
Insufficient length validation in Zephyr MQTT parsing allows buffer overflow, potentially enabling remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-10071?
CVE-2020-10071 is a critical memory corruption vulnerability in Zephyrproject Zephyr, published on 5 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Which versions are affected by CVE-2020-10071?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2020-10071?
No fix has been published for CVE-2020-10071 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-2020-10071 being exploited?
There is no known exploitation of CVE-2020-10071 in the wild and no public exploit code.
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Sources
Also known as GHSA-x73g-qmcm-3qgq.