CVE-2020-10062: Packet length decoding error in MQTT
First published: Fri Jun 05 2020(Updated: )
An off-by-one error in the Zephyr project MQTT packet length decoder can result in memory corruption and possible remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Credit: vulnerabilities@zephyrproject.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zephyr Project Manager | <=2.2.0 |
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Reference Links
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062
- https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4
- https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84
Frequently Asked Questions
What is the severity of CVE-2020-10062?
CVE-2020-10062 has a high severity level due to its potential to cause memory corruption and allow remote code execution.
How do I fix CVE-2020-10062?
To fix CVE-2020-10062, upgrade the Zephyr version to 2.2.1 or later, which addresses the vulnerability.
What systems are affected by CVE-2020-10062?
CVE-2020-10062 affects the Zephyr project MQTT packet length decoder in Zephyr versions 2.2.0 and earlier.
What is the nature of the vulnerability in CVE-2020-10062?
The vulnerability in CVE-2020-10062 is an off-by-one error that can lead to memory corruption.
Can CVE-2020-10062 lead to remote code execution?
Yes, CVE-2020-10062 can potentially allow remote code execution due to its memory corruption impact.
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