Resource exhaustion in Zephyrproject Zephyr
CVE-2022-2741
The denial-of-service can be triggered by transmitting a carefully crafted CAN frame on the same CAN network as the vulnerable node. The frame must have a CAN ID matching an installed filter in the vulnerable node (this can easily be guessed based on CAN traffic analyses). The frame must contain the opposite RTR bit as what the filter installed in the vulnerable node contains (if the filter matches RTR frames, the frame must be a data frame or vice versa).
Vulnerability class: DoS (Denial of Service)
EPSS: 0.006 (44.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Zephyrproject Zephyr
- Zephyrproject-rtos Zephyr — versions unspecified
Weakness classification (CWE)
References
- vulnerabilities@zephyrproject.org (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2741?
- CVE-2022-2741 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Uncontrolled Resource Consumption. CVSS score: 8.2/10. Published 2022-10-31.
- How severe is CVE-2022-2741?
- High severity. CVSS v3 base score is 8.2 out of 10.