CVE-2020-10021: Out-of-bounds write in USB Mass Storage with unaligned sizes
First published: Fri May 01 2020(Updated: )
Out-of-bounds Write in the USB Mass Storage memoryWrite handler with unaligned Sizes See NCC-ZEP-024, NCC-ZEP-025, NCC-ZEP-026 This issue affects: zephyrproject-rtos zephyr version 1.14.1 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<2.2.0 |
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Reference Links
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10021
- https://github.com/zephyrproject-rtos/zephyr/pull/23240
- https://github.com/zephyrproject-rtos/zephyr/pull/23455
- https://github.com/zephyrproject-rtos/zephyr/pull/23456
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-26
Frequently Asked Questions
What is the severity of CVE-2020-10021?
CVE-2020-10021 is classified as a medium severity vulnerability.
How do I fix CVE-2020-10021?
To fix CVE-2020-10021, update the Zephyr project to version 2.2.0 or later.
Which versions of Zephyr are affected by CVE-2020-10021?
CVE-2020-10021 affects Zephyr versions 1.14.1 and later, as well as versions 2.1.0 to 2.2.0.
What type of vulnerability is CVE-2020-10021?
CVE-2020-10021 is an out-of-bounds write vulnerability in the USB Mass Storage memoryWrite handler.
Is CVE-2020-10021 a critical vulnerability?
No, CVE-2020-10021 is not considered a critical vulnerability.
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