Out-of-bounds write in zephyr - CVE-2020-10021
Published: May 12, 2020 / Updated: August 9, 2020
Vulnerability identifier: #VU41112
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-10021
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: rutantan
Affected software:
zephyr
zephyr
Detailed vulnerability description
The vulnerability allows a local authenticated user to execute arbitrary code.
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.
How to mitigate CVE-2020-10021
Install update from vendor's website.
Sources
- 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