{"id":"CVE-2023-24818","state":"PUBLISHED","title":"RIOT-OS vulnerable to null pointer dereference during fragment forwarding","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. During forwarding of a fragment an uninitialized entry in the reassembly buffer is used. The NULL pointer dereference triggers a hard fault exception resulting in denial of service. Version 2022.10 fixes this issue. As a workaround, disable support for fragmented IP datagrams or apply the patches manually.","publishedAt":"2023-04-24T14:23:44.280Z","updatedAt":"2025-02-04T19:10:24.001Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["RIOT-OS RIOT"],"affected":[{"vendor":"RIOT-OS","product":"RIOT","versions":[{"version":"< 2022.10","status":"affected"}]}],"references":["https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-69h9-vj5r-xcg6","https://github.com/RIOT-OS/RIOT/pull/18817/commits/0bec3e245ed3815ad6c8cae54673f0021777768b","https://github.com/RIOT-OS/RIOT/pull/18817/commits/17c70f7ee0b1445f2941f516f264ed4a096e82b7","https://github.com/RIOT-OS/RIOT/pull/18817/commits/aa27ed71fa3e5d48dee1748dcf27b6323ec98a33","https://github.com/RIOT-OS/RIOT/pull/18820/commits/4b23d93868a28edd8ebf2ff4ebe94540f2475008","https://github.com/RIOT-OS/RIOT/pull/18820/commits/f4df5b4c4f841ccb460930894cf68ab10b55b971","https://github.com/RIOT-OS/RIOT/pull/18820/commits/f4fb746d1acaacc962daeed3aa71aadfe307d20e"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:05:43.909Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/24xxx/CVE-2023-24818.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-24818","state":"PUBLISHED","datePublished":"2023-04-24T14:23:44.280Z","dateUpdated":"2025-02-04T19:10:24.001Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-01-30T14:43:33.704Z"},"containers":{"cna":{"title":"RIOT-OS vulnerable to null pointer dereference during fragment forwarding","descriptions":[{"lang":"en","value":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. 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