Buffer overflow in Zephyrproject 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 affects: zephyrproject-rtos zephyr version 2.1.0 and later versions. version 2.2.0 and later versions.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.023 (83.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Zephyrproject Zephyr — versions 2.1.0, 2.2.0
- Zephyrproject-Rtos Zephyr — versions 2.1.0, 2.2.0
Weakness classification (CWE)
References
- zephyrprojectsec.atlassian.net/browse/ZEPSEC-28 (Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24154 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24065 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24066 (Patch, Third Party Advisory)
- docs.zephyrproject.org/latest/security/vulnerabilities.html
Frequently asked questions
- What is CVE-2020-10022?
- CVE-2020-10022 is a critical-severity vulnerability in Zephyrproject 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.