CVE-2020-15166

EUVD-2020-7240
In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub_MCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
Affected Products (NVD)
VendorProductVersion
zeromqlibzmq
𝑥
< 4.3.3
debiandebian_linux
9.0
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
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+esm1
released
focal
Fixed 4.3.2-2ubuntu1.20.04.1~esm1
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+esm2
released
xenial
Fixed 4.1.4-7ubuntu0.1+esm1
released