CVE-2023-24825

RIOT-OS vulnerable to NULL pointer dereference in gnrc_pktbuf_mark

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 a crafted frame to the device to trigger a NULL pointer dereference leading to denial of service. This issue is fixed in version 2023.04. There are no known workarounds.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com
Affected: RIOT-OS RIOT
Published at:
Updated at:

References

Link Tags
https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xqm8-xj74-fjw2 vendor advisory
https://github.com/RIOT-OS/RIOT/commit/0c522075445a62ce3102e141573ecc2788521897 patch vendor advisory
https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c#L416 vendor advisory
https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c#L429 vendor advisory
https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L729 vendor advisory
https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L761 mailing list
https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c#L169 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-24825?
CVE-2023-24825 has been scored as a high severity vulnerability.
How to fix CVE-2023-24825?
To fix CVE-2023-24825, 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-2023-24825 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-24825 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-2023-24825?
CVE-2023-24825 affects RIOT-OS RIOT.
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