CVE-2023-24822— RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding
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I. Basic Information for CVE-2023-24822
Vulnerability Information
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Vulnerability Title
RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
RIOT RIOT-OS 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RIOT RIOT-OS是一套应用于物联网领域的操作系统。 RIOT RIOT-OS 2022.10 之前版本存在代码问题漏洞，攻击者利用该漏洞可以设备发送精心制作的帧，从而在对 6LoWPAN IPHC 标头进行编码时导致 NULL 指针取消引用， NULL 指针取消引用会导致硬故障异常，从而导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-24822
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- https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-8x69-5fhj-72whx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-24822
Same Patch Batch · RIOT-OS · 2023-04-24 · 6 CVEs total
| CVE-2023-24823 | 9.8 CRITICAL | RIOT-OS vulnerable to Packet Type Confusion during IPHC send |
| CVE-2023-24819 | 9.8 CRITICAL | RIOT-OS vulnerable to Buffer Overflow during IPHC receive |
| CVE-2023-24821 | 7.5 HIGH | RIOT-OS vulnerable to Integer Underflow during defragmentation |
| CVE-2023-24820 | 7.5 HIGH | RIOT-OS vulnerable to Integer Underflow during IPHC receive |
| CVE-2023-24818 | 7.5 HIGH | RIOT-OS vulnerable to null pointer dereference during fragment forwarding |
IV. Related Vulnerabilities
Same product: RIOT
- CVE-2026-27703
RIOT has an Out-of-Bounds Write in nanoCoAP Handler - CVE-2026-25139
RIOT Vulnerable to Multiple Out-of-Bounds Read When Processi - CVE-2025-66647
RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass - CVE-2025-66646
RIOT-OS has NULL pointer dereference in gnrc_ipv6_ext_frag_r - CVE-2025-53888
RIOT-OS has an ineffective size check that can lead to buffe
Same vendor: RIOT-OS
- CVE-2026-27703
RIOT has an Out-of-Bounds Write in nanoCoAP Handler - CVE-2026-25139
RIOT Vulnerable to Multiple Out-of-Bounds Read When Processi - CVE-2025-66647
RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass - CVE-2025-66646
RIOT-OS has NULL pointer dereference in gnrc_ipv6_ext_frag_r - CVE-2025-53888
RIOT-OS has an ineffective size check that can lead to buffe
Same weakness: CWE-476
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Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference - CVE-2026-6666
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V. Comments for CVE-2023-24822
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