What is the severity of CVE-2020-27217?

CVE-2020-27217 has not been assigned a specific severity rating by public databases but poses a risk of denial of service due to message overflow.

How do I fix CVE-2020-27217?

To resolve CVE-2020-27217, upgrade to Eclipse Hono version 1.5.0 or later where the message size verification has been implemented.

What systems are affected by CVE-2020-27217?

CVE-2020-27217 affects Eclipse Hono versions 1.3.0 and 1.4.0.

Can CVE-2020-27217 lead to data loss?

While CVE-2020-27217 is primarily a denial of service vulnerability, improperly handled large messages could potentially lead to data loss.

Is there a workaround for CVE-2020-27217 if I can't upgrade?

A temporary workaround for CVE-2020-27217 may involve monitoring and limiting the incoming message sizes manually until an upgrade can be performed.

Vulnerability/
CVE-2020-27217

high

7.5

CWE

1284

13/11/2020

4/8/2024

CVE-2020-27217

First published: Fri Nov 13 2020(Updated: )

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.

Credit: emo@eclipse.org

Affected Software	Affected Version	How to fix
Eclipse Hono	=1.3.0
Eclipse Hono	=1.4.0

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Reference Links

https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068

Frequently Asked Questions

What is the severity of CVE-2020-27217?
CVE-2020-27217 has not been assigned a specific severity rating by public databases but poses a risk of denial of service due to message overflow.
How do I fix CVE-2020-27217?
To resolve CVE-2020-27217, upgrade to Eclipse Hono version 1.5.0 or later where the message size verification has been implemented.
What systems are affected by CVE-2020-27217?
CVE-2020-27217 affects Eclipse Hono versions 1.3.0 and 1.4.0.
Can CVE-2020-27217 lead to data loss?
While CVE-2020-27217 is primarily a denial of service vulnerability, improperly handled large messages could potentially lead to data loss.
Is there a workaround for CVE-2020-27217 if I can't upgrade?
A temporary workaround for CVE-2020-27217 may involve monitoring and limiting the incoming message sizes manually until an upgrade can be performed.

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collector/mitre-cve
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agent/last-modified-date
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agent/severity
agent/references
agent/tags
agent/event
agent/description
agent/first-publish-date
agent/source
vendor/eclipse
canonical/eclipse hono
version/eclipse hono/1.3.0
version/eclipse hono/1.4.0

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