Vulnerability Details : CVE-2020-10023
The shell subsystem contains a buffer overflow, whereby an adversary with physical access to the device is able to cause a memory corruption, resulting in denial of service or possibly code execution within the Zephyr kernel. See NCC-NCC-019 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2020-10023
- cpe:2.3:o:zephyrproject:zephyr:2.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:zephyrproject:zephyr:1.14.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-10023
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-10023
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
6.8
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
0.9
|
5.9
|
NIST | |
|
6.9
|
MEDIUM | CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H |
0.3
|
6.0
|
Zephyr Project |
CWE ids for CVE-2020-10023
-
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-2020-10023
-
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-29
[ZEPSEC-29] Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim - Zephyr Project Security IssuesThird Party Advisory
-
https://github.com/zephyrproject-rtos/zephyr/pull/23646
Backport v1.14: shell: utils: Fix buffer overrun in shell_spaces_trim by ceolin · Pull Request #23646 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
-
https://github.com/zephyrproject-rtos/zephyr/pull/23649
Backport v2.1: shell: utils: Fix buffer overrun in shell_spaces_trim by ceolin · Pull Request #23649 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
-
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10023
Vulnerabilities — Zephyr Project Documentation
-
https://github.com/zephyrproject-rtos/zephyr/pull/23304
shell: utils: Fix buffer overrun in shell_spaces_trim by ceolin · Pull Request #23304 · zephyrproject-rtos/zephyr · GitHubPatch;Third Party Advisory
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