CVE-2020-10070: critical vulnerability in zephyrproject-rtos zephyr
MQTT buffer overflow on receive buffer
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9epss 2.9%
In the Zephyr Project MQTT code, improper bounds checking can result in memory corruption and possibly remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
zephyrproject-rtos · zephyrRelated CVEs — zephyrproject-rtos zephyr
In the same product, most dangerous first.
CVE-2020-10071CRITICALInsufficient publish message length validation in MQTTEPSS 3.4%CVE-2020-10062CRITICALPacket length decoding error in MQTTEPSS 2.9%CVE-2020-10022CRITICALUpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size ArrayEPSS 2.3%CVE-2021-3625CRITICALBuffer overflow in Zephyr USB DFU DNLOADEPSS 2.3%CVE-2020-10063MEDIUMRemote Denial of Service in CoAP Option Parsing Due To Integer OverflowEPSS 1.8%CVE-2020-10060HIGHUpdateHub Might Dereference An Uninitialized PointerEPSS 1.6%
References
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10070https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/0b39cbf3c01d7feec9d0dd7cc7e0e374b6113542https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessmenthttps://zephyrprojectsec.atlassian.net/browse/ZEPSEC-85