PT-2021-20076 · Zephyr · Zephyr

Ceolin · Published 2021-05-24 · Updated 2021-05-27 · CVE-2021-3320

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Zephyr versions >= v2.4.0

Description The issue is related to Type Confusion in 802154 ACK Frames Handling, which contains a NULL Pointer Dereference.

Recommendations For Zephyr versions >= v2.4.0, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Type Confusion

NULL Pointer Dereference

Weakness Enumeration

CWE-843

CWE-476

Related Identifiers

CVE-2021-3320

GHSA-27R3-RXCH-2HM7

Affected Products

Zephyr

References · 3

• https://osv.dev/vulnerability/CVE-2021-3320 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3320 · Security Note
• http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7 · Note