Home/CVE/In the Zephyr Project MQTT code, improper bounds checking can result in memory corruption and possibly remote code execu
CVE

CVE-2020-10070

In the Zephyr Project MQTT code, improper bounds checking can result in memory corruption and possibly remote code execu

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.

CRITICAL · CVSS 9 EPSS 0.06474
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

1
zephyrproject zephyr<= 2.2.0
▣

Scoring & Timeline

9
CRITICAL · CVSS v3.1 · vulnerabilities@zephyrproject.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Jun 2020 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10070Vendor Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/0b39cbf3c01d7feec9d0dd7cc7e0e374b6113542PatchThird Party Advisory
https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessmentThird Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-85Third Party Advisory
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