Vulnerability Details : CVE-2023-5563
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.
Products affected by CVE-2023-5563
- cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-5563
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-5563
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
2.8
|
4.2
|
Zephyr Project |
CWE ids for CVE-2023-5563
-
The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.Assigned by: vulnerabilities@zephyrproject.org (Secondary)
References for CVE-2023-5563
-
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-98mc-rj7w-7rpv
drivers: can: sja1000: a bus-off event can cause a fatal exception · Advisory · zephyrproject-rtos/zephyr · GitHubVendor Advisory
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