CVE-2023-5563

Description

The SJA1000 CAN controller driver backend automatically attempt to recover from a bus-off event when built with CONFIG_CAN_AUTO_BUS_OFF_RECOVERY=y. This results in calling k_sleep() in IRQ context, causing a fatal exception.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory github.com
Affected: zephyrproject-rtos Zephyr
Published at:
Updated at:

References

Link Tags
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-98mc-rj7w-7rpv vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-5563?
CVE-2023-5563 has been scored as a high severity vulnerability.
How to fix CVE-2023-5563?
To fix CVE-2023-5563, 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-2023-5563 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5563 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-2023-5563?
CVE-2023-5563 affects zephyrproject-rtos Zephyr.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.