CVE-2020-10023: Shell Subsystem Contains a Buffer Overflow Vulnerability In shell_spaces_trim
First published: Fri May 01 2020(Updated: )
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.
Credit: vulnerabilities@zephyrproject.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zephyr Project Manager | =1.14.1 | |
| Zephyr Project Manager | =2.1.0 |
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Reference Links
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10023
- https://github.com/zephyrproject-rtos/zephyr/pull/23304
- https://github.com/zephyrproject-rtos/zephyr/pull/23646
- https://github.com/zephyrproject-rtos/zephyr/pull/23649
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-29
Frequently Asked Questions
What is the severity of CVE-2020-10023?
The severity of CVE-2020-10023 is classified as high due to the potential for denial of service and possible code execution.
How do I fix CVE-2020-10023?
To fix CVE-2020-10023, update to a patched version of Zephyr that resolves the buffer overflow vulnerability.
What systems are affected by CVE-2020-10023?
CVE-2020-10023 affects Zephyr versions 1.14.1 and 2.1.0.
What type of vulnerability is CVE-2020-10023?
CVE-2020-10023 is a buffer overflow vulnerability in the shell subsystem of the Zephyr kernel.
What could happen if CVE-2020-10023 is exploited?
If CVE-2020-10023 is exploited, it can lead to memory corruption, resulting in system instability or unauthorized code execution.
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