CVE-2023-24825: RIOT-OS vulnerable to NULL pointer dereference in gnrc_pktbuf_mark
First published: Tue May 30 2023(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Riot-os Riot | <2023.04 |
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Reference Links
- https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c#L429
- https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xqm8-xj74-fjw2
- https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c#L416
- https://github.com/RIOT-OS/RIOT/commit/0c522075445a62ce3102e141573ecc2788521897
- https://github.com/RIOT-OS/RIOT/blob/ccbb304eae7b59e8aca24a6ffd095b5b3f7720ee/sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c#L169
- https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L729
- https://github.com/RIOT-OS/RIOT/blob/2022.10-branch/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L761
Frequently Asked Questions
What is the severity of CVE-2023-24825?
CVE-2023-24825 has a high severity rating due to its potential to cause denial of service.
How do I fix CVE-2023-24825?
To address CVE-2023-24825, upgrade to RIOT-OS version 2023.04 or later.
What type of attack does CVE-2023-24825 involve?
CVE-2023-24825 involves an attacker sending a crafted 6LoWPAN frame to trigger a NULL pointer dereference.
Which versions of RIOT-OS are affected by CVE-2023-24825?
CVE-2023-24825 affects RIOT-OS versions prior to 2023.04.
What are the consequences of CVE-2023-24825?
The consequence of CVE-2023-24825 is a denial of service that can disrupt the operation of IoT devices running vulnerable versions of RIOT-OS.
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