Detections
Analytics
CVE-2021-20237
high
Description
An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3. This flaw allows a remote unauthenticated attacker to send crafted PUB messages that consume excessive memory if the CURVE/ZAP authentication is disabled on the server, causing a denial of service. The highest threat from this vulnerability is to system availability.
References
https://github.com/zeromq/libzmq/security/advisories/GHSA-4p5v-h92w-6wxw