{"id":"CVE-2022-36052","summary":"Out-of-bounds read when decompressing UDP header","details":"Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The 6LoWPAN implementation in Contiki-NG may cast a UDP header structure at a certain offset in a packet buffer. The code does not check whether the packet buffer is large enough to fit a full UDP header structure from the offset where the casting is made. Hence, it is possible to cause an out-of-bounds read beyond the packet buffer. The problem affects anyone running devices with Contiki-NG versions previous to 4.8, and which may receive 6LoWPAN packets from external parties. The problem has been patched in Contiki-NG version 4.8.","aliases":["GHSA-vwr8-6mqv-x7f5"],"modified":"2026-04-10T04:49:13.794278Z","published":"2022-09-01T12:05:11Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36052.json","cwe_ids":["CWE-125"],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36052.json"},{"type":"ADVISORY","url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-vwr8-6mqv-x7f5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-36052"},{"type":"FIX","url":"https://github.com/contiki-ng/contiki-ng/pull/1648"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/contiki-ng/contiki-ng","events":[{"introduced":"0"},{"fixed":"9771e9aaebbfbb5633ce69eb9876e0fc70bbcd6f"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"4.8"}]}}],"versions":["2.0","2.1","2.2","2.2.1","2.2.2","2.2.3","2.3","2.4","2.5-release","2.6","2.6-rc0","develop/v3.x-fork","develop/v4.0","fork","old/v2.0","old/v2.1","old/v2.2","old/v2.2.1","old/v2.2.2","old/v2.2.3","old/v2.3","old/v2.4","old/v2.6","release/v4.0","release/v4.1","release/v4.2","release/v4.3","release/v4.4","release/v4.5","release/v4.6","release/v4.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-36052.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N"}]}