RIOT-OS vulnerable to null pointer dereference during fragment forwarding
CVE-2023-24818

7.5HIGH

Key Information:

Vendor

Riot-os

Status
Riot
Vendor
CVE Published:
24 April 2023

What is CVE-2023-24818?

RIOT-OS, a popular operating system designed for Internet of Things (IoT) devices, has a vulnerability in its network stack that handles 6LoWPAN frames. Prior to version 2022.10, an attacker could exploit this issue by sending specially crafted frames to the device, leading to a NULL pointer dereference. This results in a hard fault exception when the system attempts to forward a fragmented packet, effectively causing a denial of service condition. Users are advised to upgrade to version 2022.10 or disable support for fragmented IP datagrams as a workaround to mitigate potential risks.

Affected Version(s)

RIOT < 2022.10

References

https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/RIOT-OS/RIOT/pull/18817/commits/0bec3e...
x_refsource_MISC
https://github.com/RIOT-OS/RIOT/pull/18817/commits/17c70f...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.