{"id":"CVE-2023-30546","summary":"Contiki-NG has off-by-one error in Antelope DBMS","details":"Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the Antelope database management system in the Contiki-NG operating system in versions 4.8 and prior. The problem exists in the Contiki File System (CFS) backend for the storage of data (file os/storage/antelope/storage-cfs.c). In the functions `storage_get_index` and `storage_put_index`, a buffer for merging two strings is allocated with one byte less than the maximum size of the merged strings, causing subsequent function calls to the cfs_open function to read from memory beyond the buffer size. The vulnerability has been patched in the \"develop\" branch of Contiki-NG, and is expected to be included in the next release. As a workaround, the problem can be fixed by applying the patch in Contiki-NG pull request #2425.","aliases":["GHSA-257g-w39m-5jj4"],"modified":"2026-08-12T03:51:47.749931020Z","published":"2023-04-26T18:14:46.436Z","database_specific":{"cwe_ids":["CWE-125","CWE-193"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30546.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30546.json"},{"type":"ADVISORY","url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-257g-w39m-5jj4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30546"},{"type":"FIX","url":"https://github.com/contiki-ng/contiki-ng/pull/2425"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/contiki-ng/contiki-ng","events":[{"introduced":"0"},{"last_affected":"9771e9aaebbfbb5633ce69eb9876e0fc70bbcd6f"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"4.8"}]}}],"versions":["release/v4.8","release/v4.7","release/v4.6","release/v4.5","release/v4.4","release/v4.3","release/v4.2","release/v4.1","release/v4.0","develop/v4.0","fork","develop/v3.x-fork","old/v2.6","2.6-rc0","2.6","2.5-release","old/v2.4","2.4","old/v2.3","2.3","old/v2.2.3","2.2.3","old/v2.2.2","2.2.2","old/v2.2.1","2.2.1","old/v2.2","2.2","old/v2.1","2.1","old/v2.0","2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-30546.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}