{"id":"CVE-2020-27217","details":"In Eclipse Hono version 1.3.0 and 1.4.0 the AMQP protocol adapter does not verify the size of AMQP messages received from devices. In particular, a device may send messages that are bigger than the max-message-size that the protocol adapter has indicated during link establishment. While the AMQP 1.0 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 1.0 client could exploit this behavior in order to send a message of unlimited size to the adapter, eventually causing the adapter to fail with an out of memory exception.","aliases":["GHSA-9f52-hpvw-v96w"],"modified":"2026-08-27T08:40:04.289182Z","published":"2020-11-13T20:15:16.270Z","references":[{"type":"REPORT","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse-hono/hono","events":[{"introduced":"4026e3b5e28e381064ccfb3679f012729c3d5e1d"},{"last_affected":"2f415ce12c92c23aac42ac92d4652550e0b7f252"}],"database_specific":{"cpe":["cpe:2.3:a:eclipse:hono:1.3.0:*:*:*:*:*:*:*","cpe:2.3:a:eclipse:hono:1.4.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.3.0"},{"last_affected":"1.3.0"},{"introduced":"1.4.0"},{"last_affected":"1.4.0"}],"source":"CPE_STRING"}}],"versions":["1.3.0","1.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27217.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}