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CVE-2020-15166

Denial of Service in ZeroMQ

Published: Sep 11, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
3.4%
Top 12.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400

Affected Products

libzmqzeromq
Library
OSS Libraries / generic-library
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Astra Linux Common EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
zeromqoss-projectOSS Librariesaka libzmq, 0mq, zmq
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m
github.com
https://github.com/zeromq/libzmq/pull/3913
github.com
https://github.com/zeromq/libzmq/pull/3973
github.com
and 14 more references View all →

Timeline

Published
Sep 11, 2020
Last Updated
Nov 21, 2024

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