CVE-2021-3320 — MEDIUM (5.9)

Vulnerability Description

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

CVSS Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	>= 2.0.0, <= 2.4.0

Related Weaknesses (CWE)

CWE-476 CWE-843

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2Third Party Advisory
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2Third Party Advisory

FAQ

What is CVE-2021-3320?

CVE-2021-3320 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advi...

How severe is CVE-2021-3320?

CVE-2021-3320 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3320?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.