Vulnerability · Published Nov 13, 2020 · Assigned by eclipse

CVE-2020-27217

High 7.5

In plain English

A high-severity security flaw in Eclipse Hono from The Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High

Exploit odds (30 days)1.3%top 29.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.eclipse.hono:hono-core	1.4.3	GHSA-9f52-hpvw-v96w

Affected products (as reported)

Vendor	Product	Versions
The Eclipse Foundation	Eclipse Hono	1.3.01.4.0

Weakness: CWE-1284

References

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