{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-64344", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-10-30T17:40:52.031Z", "datePublished": "2025-11-26T23:05:33.333Z", "dateUpdated": "2025-11-28T15:30:15.401Z"}, "containers": {"cna": {"title": "Suricata is vulnerable to a stack overflow from unbounded stack allocation in LuaPushStringBuffer", "problemTypes": [{"descriptions": [{"cweId": "CWE-121", "lang": "en", "description": "CWE-121: Stack-based Buffer Overflow", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/OISF/suricata/security/advisories/GHSA-93fh-cgmc-w3rx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OISF/suricata/security/advisories/GHSA-93fh-cgmc-w3rx"}, {"name": "https://github.com/OISF/suricata/commit/e13fe6a90dba210a478148c4084f6f5db17c5b5a", "tags": ["x_refsource_MISC"], "url": "https://github.com/OISF/suricata/commit/e13fe6a90dba210a478148c4084f6f5db17c5b5a"}], "affected": [{"vendor": "OISF", "product": "suricata", "versions": [{"version": "< 7.0.13", "status": "affected"}, {"version": "< 8.0.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-11-26T23:05:33.333Z"}, "descriptions": [{"lang": "en", "value": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size."}], "source": {"advisory": "GHSA-93fh-cgmc-w3rx", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-11-28T15:29:12.591025Z", "id": "CVE-2025-64344", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-11-28T15:30:15.401Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size."}], "id": "CVE-2025-64344", "lastModified": "2025-11-28T23:11:55.537", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-11-26T23:15:49.080", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/commit/e13fe6a90dba210a478148c4084f6f5db17c5b5a"}, {"source": "security-advisories@github.com", "url": "https://github.com/OISF/suricata/security/advisories/GHSA-93fh-cgmc-w3rx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "Suricata: Suricata: Stack overflow in Lua scripts due to large buffers", "id": "2417421", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2417421"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-121", "details": ["A flaw was found in Suricata. This vulnerability allows a stack overflow via working with large buffers in Lua scripts."], "name": "CVE-2025-64344", "public_date": "2025-11-26T23:05:33Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-64344\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-64344\nhttps://github.com/OISF/suricata/commit/e13fe6a90dba210a478148c4084f6f5db17c5b5a\nhttps://github.com/OISF/suricata/security/advisories/GHSA-93fh-cgmc-w3rx"], "statement": "The highest threat is to system availability due to a stack overflow in Suricata when processing large buffers within Lua rules and output scripts. This issue specifically affects deployments utilizing Lua scripting capabilities with potentially large data streams.", "threat_severity": "Important"}

{"created": "2025-11-27T16:26:12.215169+00:00", "updated": "2025-11-27T16:26:12.215219+00:00", "vendors": ["oisf", "oisf$PRODUCT$suricata"]}