CVE-2020-27217: Improper Validation of Specified Quantity in Input in Eclipse Hono

February 10, 2022

In Eclipse Hono 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 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 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.

References

bugs.eclipse.org/bugs/show_bug.cgi?id=567068
github.com/advisories/GHSA-9f52-hpvw-v96w
nvd.nist.gov/vuln/detail/CVE-2020-27217

Code Behaviors & Features

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