{"id":"CVE-2011-4905","aliases":["DEBIAN-CVE-2011-4905","EUVD-2022-3455","GHSA-9wcx-326r-7j7w","UBUNTU-CVE-2011-4905"],"status":"published","title":"Denial of Service in Apache ActiveMQ","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.08507,"percentile":0.95073,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-399"],"published":"2012-01-05T16:00:00Z","modified":"2026-10-23T17:47:47Z","fixes":[{"ecosystem":"Maven","package":"org.apache.activemq:activemq-core","fixed_in":["5.6.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"activemq","fixed_in":["5.5.0+dfsg-5"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"activemq","fixed_in":["5.5.0+dfsg-5"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.activemq:activemq-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5.0+dfsg-5"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5.0+dfsg-5"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.activemq:activemq-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.0"}]}],"versions":["4.1.1","4.1.2","5.0.0","5.1.0","5.2.0","5.3.0","5.3.1","5.3.2","5.4.0","5.4.1","5.4.2","5.4.3","5.5.0","5.5.1"]}],"products":[{"vendor":"apache","product":"activemq"}],"references":[{"url":"http://www.securityfocus.com/bid/50904","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://svn.apache.org/viewvc?view=revision\u0026revision=1209700","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://openwall.com/lists/oss-security/2011/12/25/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://openwall.com/lists/oss-security/2011/12/25/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://issues.apache.org/jira/browse/AMQ-3294","tags":["x_refsource_CONFIRM","x_transferred","Exploit","evidence","web"]},{"url":"http://svn.apache.org/viewvc?view=revision\u0026revision=1211844","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/47112","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4905","tags":["advisory"]},{"url":"https://github.com/apache/activemq/commit/3a71f8e33d0309cb0ca5b5758a8f251da205e757","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/9df9d3e89140b7329654ad5675259ec6f0c4b3a7","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/da7f9962c640666a743675085922bf75a656f81b","tags":["web"]},{"url":"https://issues.apache.org/jira/browse/AMQ-1928","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9wcx-326r-7j7w"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4905","tags":["advisory"]},{"url":"https://github.com/apache/activemq","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2011-4905","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-4905","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2011-4905","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2012-01-05T16:00:00Z","modified":"2024-08-07T00:16:35.158Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2022-3455","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2012-01-05T16:00:00Z","modified":"2024-08-07T00:16:35Z","updated_at":"2026-11-03T01:39:48.106738Z"}],"ghsa":[{"id":"GHSA-9wcx-326r-7j7w","title":"Denial of Service in Apache ActiveMQ","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2022-05-17T05:35:59Z","modified":"2023-12-20T18:41:47Z","updated_at":"2026-11-02T14:37:27.414424Z"}],"nvd":[{"id":"CVE-2011-4905","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2012-01-05T16:55:00.8Z","modified":"2026-06-16T23:35:36.27Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:11.800512Z"}],"osv":[{"id":"CVE-2011-4905","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2012-01-05T16:55:00Z","modified":"2026-04-10T03:44:09.991988Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4905","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2012-01-05T16:55:00.8Z","modified":"2026-10-23T17:47:47.369297591Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"GHSA-9wcx-326r-7j7w","title":"Denial of Service in Apache ActiveMQ","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"published","published":"2022-05-17T05:35:59Z","modified":"2024-12-07T05:41:01.069853Z","updated_at":"2026-11-02T15:46:44.225359Z"},{"id":"UBUNTU-CVE-2011-4905","description":"Apache ActiveMQ before 5.6.0 allows remote attackers to cause a denial of service (file-descriptor exhaustion and broker crash or hang) by sending many openwire failover:tcp:// connection requests.","status":"withdrawn","published":"2012-01-05T16:55:00Z","modified":"2025-07-16T07:30:51.35566Z","updated_at":"2026-11-02T15:54:06.395274Z"}]}}