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{"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"}