Vulnerability Details : 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 category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2020-10022
- cpe:2.3:o:zephyrproject:zephyr:2.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:zephyrproject:zephyr:2.2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-10022
0.59%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-10022
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
9.0
|
CRITICAL | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
2.2
|
6.0
|
Zephyr Project |
CWE ids for CVE-2020-10022
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by:
- nvd@nist.gov (Primary)
- vulnerabilities@zephyrproject.org (Secondary)
References for CVE-2020-10022
-
https://github.com/zephyrproject-rtos/zephyr/pull/24154
lib: updatehub: Improve security by nandojve · Pull Request #24154 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
-
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10022
Vulnerabilities — Zephyr Project Documentation
-
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-28
[ZEPSEC-28] UpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size Array - Zephyr Project Security IssuesThird Party Advisory
-
https://github.com/zephyrproject-rtos/zephyr/pull/24065
[backport v2.1] lib: updatehub: Minor bug fixes by otavio · Pull Request #24065 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
-
https://github.com/zephyrproject-rtos/zephyr/pull/24066
[backport v2.2] lib: updatehub: Minor bug fixes by otavio · Pull Request #24066 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
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