ARM Platform Uses Signed Integer Comparison When Validating Syscall Numbers
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.7%
exploitation probability
0.7%top 51% of all CVEs
observed exploitation
nono source reports it
The arm platform-specific code uses a signed integer comparison when validating system call numbers. An attacker who has obtained code execution within a user thread is able to elevate privileges to that of the kernel. See NCC-ZEP-001 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
zephyrproject-rtos · zephyrReferences
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10024https://github.com/zephyrproject-rtos/zephyr/pull/23323https://github.com/zephyrproject-rtos/zephyr/pull/23498https://github.com/zephyrproject-rtos/zephyr/pull/23535https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30