Vulnerability CVE-2020-10062
Published: 2020-06-05

Description:
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.

Type:

CWE-193

 (Off-by-one Error)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Zephyrproject -> Zephyr 

 References:
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
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