What’s Vulnerable › Vulnerabilities

CVE-2023-24817: RIOT-OS vulnerable to Out of Bounds write in routing with SRH

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-30 · updated 2026-06-17
• Weakness: CWE-119

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 resulting in an integer underflow and out of bounds access in the packet buffer. Triggering the access at the right time will corrupt other packets or the allocator metadata. Corrupting a pointer will lead to denial of service. This issue is fixed in version 2023.04. As a workaround, disable SRH in the network stack.

Affected products

• RIOT-OS RIOT: before 2023.04 — fixed in 2023.04

How to fix

Upgrade to a fixed version: RIOT-OS RIOT 2023.04. Check the vendor advisory for mitigations.

References

• https://github.com/RIOT-OS/RIOT/commit/34dc1757f5621be48e226cfebb2f4c63505b5360
• https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xjgw-7638-29g5
• https://github.com/RIOT-OS/RIOT/commit/34dc1757f5621be48e226cfebb2f4c63505b5360
• https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xjgw-7638-29g5

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