CVE-2021-20234

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
NISTNIST
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
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 67%
VendorProductVersion
zeromqlibzmq
𝑥
< 4.3.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
zeromq3
bullseye
4.3.4-1+deb11u1
fixed
buster
no-dsa
bookworm
4.3.4-6
fixed
sid
4.3.5-1
fixed
trixie
4.3.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
zeromq3
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
ignored
focal
Fixed 4.3.2-2ubuntu1.20.04.1~esm2
released
bionic
Fixed 4.2.5-1ubuntu0.2+esm2
released
xenial
Fixed 4.1.4-7ubuntu0.1+esm2
released
trusty
Fixed 4.0.4+dfsg-2ubuntu0.1+esm3
released