CVE-2023-24822 RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding

What is CVE-2023-24822?

CVE-2023-24822 is a high-severity vulnerability in RIOT-OS RIOT, published on 24 Apr 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 that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.

Weakness: CWE-476

Which versions are affected by CVE-2023-24822?

It affects 1 product.

Products include Riot-Os Riot.

How do I fix CVE-2023-24822?

No fix has been published for CVE-2023-24822 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-24822 being exploited?

There is no known exploitation of CVE-2023-24822 in the wild and no public exploit code.

Other vulnerabilities in RIOT-OS RIOT

• CVE-2024-32017 Buffer overflows in RIOT Critical 9.8
• CVE-2023-33975 RIOT-OS vulnerable to Out of Bounds Write in _rbuf_add Critical 9.8
• CVE-2023-24819 RIOT-OS vulnerable to Buffer Overflow during IPHC receive Critical 9.8
• CVE-2023-24823 RIOT-OS vulnerable to Packet Type Confusion during IPHC send Critical 9.8
• CVE-2021-27357 Memory corruption in n/a Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8x69-5fhj-72wh.