CVE-2020-10027

ARC Platform Uses Signed Integer Comparison When Validating Syscall Numbers

Description

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory atlassian.net
Affected: zephyrproject-rtos zephyr
Published at:
Updated at:

References

Link Tags
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-35 third party advisory
https://github.com/zephyrproject-rtos/zephyr/pull/23328 third party advisory patch
https://github.com/zephyrproject-rtos/zephyr/pull/23500 third party advisory patch
https://github.com/zephyrproject-rtos/zephyr/pull/23499 third party advisory patch
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10027

Frequently Asked Questions

What is the severity of CVE-2020-10027?
CVE-2020-10027 has been scored as a high severity vulnerability.
How to fix CVE-2020-10027?
To fix CVE-2020-10027, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10027 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-10027 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-10027?
CVE-2020-10027 affects zephyrproject-rtos zephyr.
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