Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 63% of all CVEs
observed exploitation
nono source reports it
A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact would depend on the underlying system call and can range from denial of service to information leak to memory corruption resulting in code execution within the kernel. See NCC-ZEP-005 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:L/UI:R/S:C/C:H/I:H/A:H
Affected products
zephyrproject-rtos · zephyrReferences
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10067https://github.com/zephyrproject-rtos/zephyr/pull/23239https://github.com/zephyrproject-rtos/zephyr/pull/23653https://github.com/zephyrproject-rtos/zephyr/pull/23654https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-27