CVE-2021-20236

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Summary

CVECVE-2021-20236
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-28 11:15:00 UTC
Updated2023-11-07 03:29:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 33 All All All
Application Redhat Ceph Storage 2.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Application Zeromq Zeromq All All All All

References

ReferenceSourceLinkTags
1921976 – (CVE-2021-20236) CVE-2021-20236 zeromq: Stack overflow on server running PUB/XPUB socket MISC bugzilla.redhat.com
Stack overflow on server running PUB/XPUB socket (CURVE disabled) · Advisory · zeromq/libzmq · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180050 Debian Security Update for zeromq3 (CVE-2021-20236)
  • 900024 CBL-Mariner Linux Security Update for zeromq 4.3.2
  • 902829 Common Base Linux Mariner (CBL-Mariner) Security Update for zeromq (4248)
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