PT-2021-20090 · Zephyr · Zephyr

3Zd3Z · CVE-2021-3322 · Published 2021-10-12 · Updated 2023-02-06

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Zephyr versions 2.4.0 and later

Description The issue is related to unexpected pointer aliasing in IEEE 802154 fragment reassembly in Zephyr, which contains a NULL pointer dereference.

Recommendations For Zephyr versions 2.4.0 and later, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-3322

GHSA-P86R-GC4R-4MQ3

Affected Products

Zephyr

References · 4

• 🔥 http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3 · Exploit
• https://osv.dev/vulnerability/CVE-2021-3322 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3322 · Security Note
• https://t.me/cibsecurity/30470 · Telegram Post