CVE-2025-64438

{"id": "CVE-2025-64438", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 1.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "UNREPORTED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-03T20:15:57.280", "references": [{"url": "https://github.com/eProsima/Fast-DDS/commit/0b0cb308eaeeb2175694aa0a0a723106824ce9a7", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/eProsima/Fast-DDS/commit/71da01b4aea4d937558984f2cf0089f5ba3c871f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/eProsima/Fast-DDS/commit/8ca016134dac20b6e30e42b7b73466ef7cdbc213", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://security-tracker.debian.org/tracker/CVE-2025-64438", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group\n). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast\n-DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList\n.base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s\nequence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. \nNo authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS \nlimit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t\nhe issue."}, {"lang": "es", "value": "Fast DDS es una implementaci\u00f3n en C++ del est\u00e1ndar DDS (Data Distribution Service) de la OMG (Object Management Group). Antes de las versiones 3.4.1, 3.3.1 y 2.6.11, existe una denegaci\u00f3n de servicio por falta de memoria (OOM) que puede ser activada remotamente en Fast-DDS al procesar submensajes RTPS GAP bajo QoS RELIABLE. Al enviar un peque\u00f1o paquete GAP con un enorme rango de brecha ('gapList.base - gapStart'), un atacante lleva a 'StatefulReader::processGapMsg()' a un bucle ilimitado que inserta millones de n\u00fameros de secuencia en 'WriterProxy::changes_received_' ('std::set'), causando un crecimiento de la pila de varios GB y la terminaci\u00f3n del proceso. No se requiere autenticaci\u00f3n m\u00e1s all\u00e1 de la accesibilidad de red al lector en el dominio DDS. En entornos sin un l\u00edmite de RSS (no-ASan / ilimitado), se observ\u00f3 que el consumo de memoria aumentaba a ~64 GB. Las versiones 3.4.1, 3.3.1 y 2.6.11 corrigen el problema."}], "lastModified": "2026-02-18T16:02:42.847", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8BAE40E0-6DFF-4878-9438-9C2488C9831C", "versionEndExcluding": "2.6.11"}, {"criteria": "cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "94A01F76-524F-4A5B-A782-CC789F229136", "versionEndExcluding": "3.3.1", "versionStartIncluding": "3.0.0"}, {"criteria": "cpe:2.3:a:eprosima:fast_dds:3.4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D4452677-95AB-46F9-9B76-9F0B15E62261"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}