CVE-2021-3322 — MEDIUM (6.5)

Vulnerability Description

Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

CVSS Score

6.5

MEDIUM

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	>= 2.4.0, < 2.5.0

Related Weaknesses (CWE)

CWE-476

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4ExploitPatchThird Party Advisory
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4ExploitPatchThird Party Advisory

FAQ

What is CVE-2021-3322?

CVE-2021-3322 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproj...

How severe is CVE-2021-3322?

CVE-2021-3322 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3322?

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