CVE-2021-20234

EUVD-2021-7673
An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compromised servers to crash. The highest threat from this vulnerability is to system availability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 63%
Affected Products (NVD)
VendorProductVersion
zeromqlibzmq
𝑥
< 4.3.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
zeromq3
bookworm
4.3.4-6
fixed
bullseye
4.3.4-1+deb11u1
fixed
buster
no-dsa
sid
4.3.5-1
fixed
trixie
4.3.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
zeromq3
bionic
Fixed 4.2.5-1ubuntu0.2+esm2
released
focal
Fixed 4.3.2-2ubuntu1.20.04.1~esm2
released
groovy
ignored
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
Fixed 4.0.4+dfsg-2ubuntu0.1+esm3
released
xenial
Fixed 4.1.4-7ubuntu0.1+esm2
released