What is CVE-2020-27217?

CVE-2020-27217 is a high-severity vulnerability in Eclipse Hono, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2020-11-13.

How severe is CVE-2020-27217?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Eclipse Hono

CVE-2020-27217

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.

EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Eclipse Hono — versions 1.3.0, 1.4.0
The Eclipse Foundation Hono — versions 1.3.0, 1.4.0

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

emo@eclipse.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2020-27217?: CVE-2020-27217 is a high-severity vulnerability in Eclipse Hono, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2020-11-13.
How severe is CVE-2020-27217?: High severity. CVSS v3 base score is 7.5 out of 10.