CVE-2021-20237CWE-400

An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3

published May 28, 2021

CVSS
—
EPSS
2%
Percentile
77.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01694 · 77.0th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2021-05-28T10:42Z
EPSS history
Timeline
  • 28 MAY 10:42Z
    An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3
    cvelistv5