Packet length decoding error in MQTT (zephyrproject-rtos zephyr)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.88 % · percentile 87 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- zephyr
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-193 — Off-by-one Error
References
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84
- 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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | zephyr |
| CVSS 3.1 | CRITICAL 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · vulnerabilities@zephyrproject.org (Secondary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-2527
- GCVE · GCVE-0-2020-10062
Affected configurations (NVD CPE)
cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*≤ 2.2.0
Affected products
| Product | Versions |
|---|---|
| zephyrproject-rtos · zephyr | affected 2.2.0 < unspecified |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |