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CVE-2021-20236

CRITICAL

9.8

Description

A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/28/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

fedoraproject:fedoraredhat:ceph_storageredhat:enterprise_linuxzeromq:zeromq

Weaknesses (CWE)

CWE-120CWE-787

References

https://bugzilla.redhat.com/show_bug.cgi?id=1921976(secalert@redhat.com)

https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=1921976(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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