Vulnerability · Published May 11, 2020 · Assigned by zephyr
CVE-2020-10022UpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size Array
Critical 9.0
In plain English
A critical-severity buffer overflow in zephyr from zephyrproject-rtos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities).
Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)2.3%top 16.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | zephyr | 2.1.0 – before unspecified2.2.0 – before unspecified |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-28 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24154 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24065 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24066 x_refsource_MISC
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10022 x_refsource_MISC