CVE-2023-33973 RIOT-OS vulnerable to NULL pointer dereference during NHC encoding
An attacker can crash RIOT-OS IoT devices by sending crafted 6LoWPAN frames, causing a denial of service via NULL pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-33973?
CVE-2023-33973 is a high-severity vulnerability in RIOT-OS RIOT, published on 30 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-476
Which versions are affected by CVE-2023-33973?
It affects 1 product.
Products include Riot-Os Riot.
How do I fix CVE-2023-33973?
No fix has been published for CVE-2023-33973 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-33973 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33973 exists.
Other vulnerabilities in RIOT-OS RIOT
Sources
Also known as GHSA-r2pv-3jqc-vh7w.