CVE-2021-3323 HIGH

CVE-2021-3323: Integer Underflow in 6LoWPAN IPHC Header Uncompression in Zephyr

Vendor Zephyrproject-Rtos
Product zephyr
Weakness CWE-191
Published October 12, 2021
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Integer Underflow in 6LoWPAN IPHC Header Uncompression in Zephyr. Zephyr versions >= >=2.4.0 contain Integer Underflow (Wrap or Wraparound) (CWE-191). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-89j6-qpxf-pfpc

Key dates

02Disclosure timeline

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