What is CVE-2020-10022?

CVE-2020-10022 is a critical-severity vulnerability in Zephyrproject-rtos Zephyr, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.0/10. Published 2020-05-11.

How severe is CVE-2020-10022?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Buffer overflow in Zephyrproject-rtos Zephyr

CVE-2020-10022

A malformed JSON payload that is received from an UpdateHub server may trigger memory corruption in the Zephyr OS. This could result in a denial of service in the best case, or code execution in the worst case. See NCC-NCC-016 This issue a…

Vulnerability class: Buffer Overflow

EPSS: 0.017 (82.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Zephyrproject-rtos Zephyr — versions 2.1.0, 2.2.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

zephyrprojectsec.atlassian.net/browse/ZEPSEC-28 (x_refsource_MISC)
github.com/zephyrproject-rtos/zephyr/pull/24154 (x_refsource_MISC)
github.com/zephyrproject-rtos/zephyr/pull/24065 (x_refsource_MISC)
github.com/zephyrproject-rtos/zephyr/pull/24066 (x_refsource_MISC)
docs.zephyrproject.org/latest/security/vulnerabilities.html (x_refsource_MISC)

Frequently asked questions

What is CVE-2020-10022?: CVE-2020-10022 is a critical-severity vulnerability in Zephyrproject-rtos Zephyr, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.0/10. Published 2020-05-11.
How severe is CVE-2020-10022?: Critical severity. CVSS v3 base score is 9.0 out of 10.