CVE-2021-3321 HIGH

CVE-2021-3321: Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal

Vendor Zephyrproject-Rtos
Product zephyr
Weakness CWE-680
Published October 12, 2021
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

Key dates

02Disclosure timeline

October 12, 2021 CVE published
September 16, 2024 Record updated