Improper Check or Handling of Exceptional Conditions Affecting zephyrproject-rtos/zephyr package, versions [,3.5.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-5964103
  • published13 Oct 2023
  • disclosed13 Oct 2023
  • credithenrikbrixandersen

Introduced: 13 Oct 2023

CVE-2023-5563  (opens in a new tab)
CWE-703  (opens in a new tab)

How to fix?

Upgrade zephyrproject-rtos/zephyr to version 3.5.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Check or Handling of Exceptional Conditions when the SJA1000 CAN controller driver backend is used, an attacker can cause a fatal exception by triggering a bus-off event. This is only exploitable if the CONFIG_CAN_AUTO_BUS_OFF_RECOVERY setting is enabled, which results in the system calling k_sleep() in IRQ context.

CVSS Scores

version 3.1