Buffer Overflow in USB DFU requested length
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.5%
exploitation probability
0.5%top 63% of all CVEs
observed exploitation
nono source reports it
USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
zephyrproject-rtos · zephyrReferences
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10019https://github.com/zephyrproject-rtos/zephyr/pull/23190https://github.com/zephyrproject-rtos/zephyr/pull/23457https://github.com/zephyrproject-rtos/zephyr/pull/23460https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-25