{"id":"CVE-2025-64335","summary":"Suricata is vulnerable to a null deref when used with base64_data","details":"Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.","aliases":["GHSA-v299-h7p3-q4f2"],"modified":"2026-08-12T10:47:16.991304Z","published":"2025-11-26T22:39:23.203Z","related":["openSUSE-SU-2026:10082-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64335.json"},"references":[{"type":"WEB","url":"https://www.vicarius.io/vsociety/posts/cve-2025-64335-detect-suricata-vulnerability"},{"type":"WEB","url":"https://www.vicarius.io/vsociety/posts/cve-2025-64335-mitigate-suricata-vulnerability"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64335.json"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64335"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"79db7b1ad444c76530c6eac8702c5e01b7c24a56"},{"fixed":"c935f08cd988600fd0a4f828a585b181dd5de012"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.0.2"}]}}],"versions":["suricata-8.0.1","suricata-8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64335.json","vanir_signatures_modified":"2026-08-12T10:47:16Z","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/oisf/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012","target":{"file":"src/detect-entropy.c","function":"DetectEntropySetup"},"deprecated":false,"digest":{"function_hash":"124286653467856063907557207732730547021","length":707},"id":"CVE-2025-64335-30eac64e"},{"signature_version":"v1","source":"https://github.com/oisf/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012","target":{"file":"src/detect-entropy.c"},"deprecated":false,"digest":{"line_hashes":["279499821950713529137027309076539867864","164367828274321763679754641100102308498","246057539159847792616617825525417229831","69948337898303523971131048810598628249","250096358758893899753774649767546016008"],"threshold":0.9},"id":"CVE-2025-64335-c82e58f2","signature_type":"Line"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}