What is CVE-2024-6443?

CVE-2024-6443 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Out-of-bounds Read. CVSS score: 6.3/10. Published 2024-10-04.

How severe is CVE-2024-6443?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Out-of-bounds Read in Zephyrproject Zephyr

CVE-2024-6443

In utf8_trunc in zephyr/lib/utils/utf8.c, last_byte_p can point to one byte before the string pointer if the string is empty.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Zephyrproject Zephyr
Zephyrproject-rtos Zephyr

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-787 — Out-of-bounds Write

References

vulnerabilities@zephyrproject.org (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2024-6443?: CVE-2024-6443 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Out-of-bounds Read. CVSS score: 6.3/10. Published 2024-10-04.
How severe is CVE-2024-6443?: Medium severity. CVSS v3 base score is 6.3 out of 10.