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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Zephyrproject Zephyr
- Zephyrproject-Rtos Zephyr — versions unspecified
Weakness classification (CWE)
References
- github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hx5v-j59q-c3j8 (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.