CVE-2025-27533

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ActiveMQ 5.19.0 is not affected.\n\nUsers are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.\n\nExisting users may implement mutual TLS to mitigate the risk on affected brokers."}, {"lang": "es", "value": "Vulnerabilidad de asignaci\u00f3n de memoria con valor de tama\u00f1o excesivo en Apache ActiveMQ. Durante la desmarshalling de comandos OpenWire, el valor de tama\u00f1o de los b\u00faferes no se valid\u00f3 correctamente, lo que podr\u00eda provocar una asignaci\u00f3n excesiva de memoria y ser explotado para causar una denegaci\u00f3n de servicio (DoS) al agotar la memoria del proceso. Esto afecta a aplicaciones y servicios que dependen de la disponibilidad del broker ActiveMQ cuando no utilizan conexiones TLS mutuas. Este problema afecta a Apache ActiveMQ: desde la versi\u00f3n 6.0.0 hasta la 6.1.6, desde la versi\u00f3n 5.18.0 hasta la 5.18.7, desde la versi\u00f3n 5.17.0 hasta la 5.17.7 y hasta la 5.16.8. ActiveMQ 5.19.0 no se ve afectado. Se recomienda a los usuarios actualizar a la versi\u00f3n 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7 o 5.16.8, o a la que solucione el problema. Los usuarios existentes pueden implementar TLS mutuo para mitigar el riesgo en los corredores afectados."}], "id": "CVE-2025-27533", "lastModified": "2026-06-17T09:03:46.173", "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": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "RED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/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:Y/R:A/V:D/RE:M/U:Red", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "security@apache.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-27533", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-05-07T13:59:20.516224Z", "version": "2.0.3"}}]}, "published": "2025-05-07T09:15:18.820", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2025/05/06/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00020.html"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "security@apache.org", "type": "Secondary"}]}

{"bugzilla": {"description": "ActiveMQ: ActiveMQ: Unvalidated Buffer Size Allocation", "id": "2364684", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2364684"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-789", "details": ["Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ.\nDuring unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections.\nThis issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected.\nUsers are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.\nExisting users may implement mutual TLS to mitigate the risk on affected brokers.", "A flaw was found in Apache ActiveMQ. This vulnerability allows denial of service by depleting process memory via unmarshalling OpenWire commands without proper size validation when not using mutual TLS connections."], "name": "CVE-2025-27533", "package_state": [{"cpe": "cpe:/a:redhat:a_mq_clients:2", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "A-MQ Clients 2"}, {"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:integration:1", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat Integration Camel K 1"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Not affected", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Not affected", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "package_name": "activemq-openwire-legacy", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:amq_streams:1", "fix_state": "Fix deferred", "package_name": "activemq-openwire-legacy", "product_name": "streams for Apache Kafka"}], "public_date": "2025-05-07T08:59:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-27533\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-27533\nhttp://www.openwall.com/lists/oss-security/2025/05/06/1\nhttps://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg"], "threat_severity": "Moderate"}

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