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CVE-2020-27217 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068	CVE	Issue TrackingVendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068	[email protected]	Issue TrackingVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]
CWE-1284	Improper Validation of Specified Quantity in Input	[email protected]

Affected Products

Product	Versions
eclipse hono	1.3.0 1.4.0
CPE cpe:2.3:a:eclipse:hono:1.3.0:::::::* cpe:2.3:a:eclipse:hono:1.4.0:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Dec 1, 2020	Initial Analysis	[email protected]