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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
zephyrproject-rtos zephyr
2.2.0 to < unspecifiedaffected
References
- https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment ↗
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-86 ↗
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10071 ↗
- https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/989c4713ba429aa5105fe476b4d629718f3e6082 ↗