CVE-2023-33973 HIGH

CVE-2023-33973: RIOT-OS vulnerable to NULL pointer dereference during NHC encoding

Vendor Riot-Os
Product RIOT
Weakness CWE-476
Published May 30, 2023
Last update January 10, 2025
View on NVD All CVEs

CVSS base score

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

CVSS vector

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

What the vulnerability does

01Description

RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. In versions 2023.01 and prior, an attacker can send a crafted frame which is forwarded by the device. During encoding of the packet a NULL pointer dereference occurs. This crashes the device leading to denial of service. A patch is available at pull request 19678. There are no known workarounds.

Key dates

02Disclosure timeline

May 30, 2023 CVE published
January 10, 2025 Record updated