{"id":"CVE-2024-32664","summary":"Suricata's base64 contains an out of bounds write","details":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, specially crafted traffic or datasets can cause a limited buffer overflow. This vulnerability is fixed in 7.0.5 and 6.0.19. Workarounds include not use rules with `base64_decode` keyword with `bytes` option with value 1, 2 or 5 and for 7.0.x, setting `app-layer.protocols.smtp.mime.body-md5` to false.","aliases":["GHSA-79vh-hpwq-3jh7"],"modified":"2026-05-19T05:58:58.393406Z","published":"2024-05-07T14:57:01.967Z","related":["openSUSE-SU-2025:15394-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32664.json","cwe_ids":["CWE-120","CWE-122"],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32664.json"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-79vh-hpwq-3jh7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-32664"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/311002baf288a225f62cf18a90c5fdd294447379"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/d5ffecf11ad2c6fe89265e518f5d7443caf26ba4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"21ec99aa76cc5406007ce12a4891f2eaedb02291"},{"fixed":"d5ffecf11ad2c6fe89265e518f5d7443caf26ba4"}]}],"database_specific":{"vanir_signatures_modified":"2026-05-19T05:58:58Z","source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-32664.json","vanir_signatures":[{"id":"CVE-2024-32664-416a8d97","source":"https://github.com/oisf/suricata/commit/d5ffecf11ad2c6fe89265e518f5d7443caf26ba4","deprecated":false,"target":{"file":"src/util-base64.c"},"signature_version":"v1","signature_type":"Line","digest":{"line_hashes":["46679933959011915951402130356142014458","152686793277762586364556378538153723005","24712848685648214478961238615451827358","299308388501023117808097698127344830766","308754288649312340994858895020941377081","254300812950586756234475076883955935037","241421372473962255925250380684720938406","34126542032130551298903788104990888268","201108913660986669710285444166741733136","164794786683505136590423059992333542084","239127772975049259354514938513769890836"],"threshold":0.9}},{"id":"CVE-2024-32664-e2392738","source":"https://github.com/oisf/suricata/commit/d5ffecf11ad2c6fe89265e518f5d7443caf26ba4","deprecated":false,"target":{"file":"src/util-base64.c","function":"DecodeBase64"},"signature_version":"v1","signature_type":"Function","digest":{"length":1725,"function_hash":"212927719737738737265170887986709280404"}}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}