CVE-2023-24826 Usage of Uninitialized Timer during forwarding of Fragments with SFR

Medium 5.9 Published Updated

An attacker can cause a denial of service in RIOT-OS by sending crafted 6LoWPAN frames that trigger the use of an uninitialized timer.

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-2023-24826?

CVE-2023-24826 is a medium-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. Prior to version 2023.04, an attacker can send crafted frames to the device to trigger the usage of an uninitialized object leading to denial of service. This issue is fixed in version 2023.04. As a workaround, disable fragment forwarding or SFR.

Weakness: CWE-824

Which versions are affected by CVE-2023-24826?

It affects 1 product.

Products include Riot-Os Riot.

How do I fix CVE-2023-24826?

No fix has been published for CVE-2023-24826 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-24826 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-24826 exists.

Sources

Also known as GHSA-xfj4-9g7w-f4gh.

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