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

7.5HIGH

Key Information:

Vendor

RIOT-OS

Status
RIOT
Vendor
CVE Published:
30 May 2023

What is CVE-2023-33973?

RIOT-OS, an operating system designed for Internet of Things (IoT) devices, has a vulnerability within its network stack related to the processing of 6LoWPAN frames. In versions 2023.01 and earlier, attackers can exploit this issue by sending a specially crafted frame to the device. This manipulation results in a NULL pointer dereference during the frame encoding process, which causes the device to crash and leads to a denial of service. A patch is available to address this vulnerability, but no known workarounds exist.

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Affected Version(s)

RIOT <= 2023.01

References

https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/RIOT-OS/RIOT/pull/19678
x_refsource_MISC
https://github.com/RIOT-OS/RIOT/commit/c9d7863e5664a16903...
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

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