CVE-2023-24826

Usage of Uninitialized Timer during forwarding of Fragments with SFR

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.21%
Vendor Advisory github.com
Affected: RIOT-OS RIOT
Published at:
Updated at:

References

Link Tags
https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xfj4-9g7w-f4gh vendor advisory
https://github.com/RIOT-OS/RIOT/commit/287f030af20e829469cdf740606148018a5a220d patch
https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L402 product
https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/network_layer/sixlowpan/frag/sfr/gnrc_sixlowpan_frag_sfr.c#L420 product

Frequently Asked Questions

What is the severity of CVE-2023-24826?
CVE-2023-24826 has been scored as a medium severity vulnerability.
How to fix CVE-2023-24826?
To fix CVE-2023-24826, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-24826 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-24826 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24826?
CVE-2023-24826 affects RIOT-OS RIOT.
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