Vulnerability in Zephyrproject Zephyr
CVE-2021-3454
Truncated L2CAP K-frame causes assertion failure. Zephyr versions >= 2.4.0, >= v.2.50 contain Improper Handling of Length Parameter Inconsistency (CWE-130), Reachable Assertion (CWE-617). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx88-6c29-vrp3
EPSS: 0.009 (57.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Zephyrproject Zephyr
- Zephyrproject-rtos Zephyr — versions 2.4.0, v.2.50
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vulnerabilities@zephyrproject.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-3454?
- CVE-2021-3454 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Improper Handling of Length Parameter Inconsistency. CVSS score: 4.3/10. Published 2021-10-19.
- How severe is CVE-2021-3454?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-3454 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.