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CVE-2021-20237

🗓️ 28 May 2021 11:15:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 41 Views

An uncontrolled memory leak in ZeroMQ's src/xpub.cpp before version 4.3.3 allows remote unauthenticated attackers to cause denial of service by sending crafted PUB messages, consuming excessive memory if CURVE/ZAP authentication is disabled

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2021-20237
28 May 202111:15
attackerkb
astralinux
AstraLinux
Astra Linux – Vulnerability in Zeromq3
24 Aug 202610:19
astralinux
bdu_fstec
BDU FSTEC
The vulnerability in the xpub.cpp component of the ZeroMQ messaging library, related to improper memory release before deleting the last reference, allows a violator to trigger a service failure.
13 Sep 202400:00
bdu_fstec
cnnvd
CNNVD
ZeroMQ 资源管理错误漏洞
28 May 202100:00
cnnvd
cnvd
CNVD
ZeroMQ Resource Management Error Vulnerability
31 May 202100:00
cnvd
cve
CVE
CVE-2021-20237
28 May 202110:42
cve
cvelist
Cvelist
CVE-2021-20237
28 May 202110:42
cvelist
debiancve
Debian CVE
CVE-2021-20237
28 May 202110:42
debiancve
euvd
EUVD
EUVD-2021-7676
3 Oct 202520:07
euvd
nvd
NVD
CVE-2021-20237
28 May 202111:15
nvd
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu18.04allzeromq34.2.5-1ubuntu0.2+esm2zeromq3_4.2.5-1ubuntu0.2+esm2_all.deb
Ubuntu20.04allzeromq34.3.2-2ubuntu1.20.04.1~esm2zeromq3_4.3.2-2ubuntu1.20.04.1~esm2_all.deb

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26 Aug 2025 12:27Current
7.1High risk
Vulners AI Score7.1
CVSS 24.3
CVSS 3.17.5
EPSS0.01694
41