Vulnerability Details CVE-2021-20236
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 58.2%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
Products affected by CVE-2021-20236
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cpe:2.3:a:redhat:ceph_storage:2.0
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cpe:2.3:a:zeromq:zeromq:0.1
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cpe:2.3:a:zeromq:zeromq:0.1.1
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cpe:2.3:a:zeromq:zeromq:0.2
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cpe:2.3:a:zeromq:zeromq:0.3
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cpe:2.3:a:zeromq:zeromq:0.3.1
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cpe:2.3:a:zeromq:zeromq:0.3.2
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cpe:2.3:a:zeromq:zeromq:0.4
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cpe:2.3:a:zeromq:zeromq:0.5
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cpe:2.3:a:zeromq:zeromq:0.6
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cpe:2.3:a:zeromq:zeromq:0.6.1
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cpe:2.3:a:zeromq:zeromq:1.0.0
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cpe:2.3:a:zeromq:zeromq:1.0.1
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cpe:2.3:a:zeromq:zeromq:2.0
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cpe:2.3:a:zeromq:zeromq:2.0.10
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cpe:2.3:a:zeromq:zeromq:2.0.11
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cpe:2.3:a:zeromq:zeromq:2.0.6
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cpe:2.3:a:zeromq:zeromq:2.0.7
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cpe:2.3:a:zeromq:zeromq:2.0.8
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cpe:2.3:a:zeromq:zeromq:2.0.9
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cpe:2.3:a:zeromq:zeromq:2.1.0
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cpe:2.3:a:zeromq:zeromq:2.1.1
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cpe:2.3:a:zeromq:zeromq:2.1.10
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cpe:2.3:a:zeromq:zeromq:2.1.11
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cpe:2.3:a:zeromq:zeromq:2.1.2
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cpe:2.3:a:zeromq:zeromq:2.1.3
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cpe:2.3:a:zeromq:zeromq:2.1.4
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cpe:2.3:a:zeromq:zeromq:2.1.7
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cpe:2.3:a:zeromq:zeromq:2.1.8
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cpe:2.3:a:zeromq:zeromq:2.1.9
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cpe:2.3:a:zeromq:zeromq:2.2.0
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cpe:2.3:a:zeromq:zeromq:3.0.0
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cpe:2.3:a:zeromq:zeromq:3.0.1
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cpe:2.3:a:zeromq:zeromq:3.0.2
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cpe:2.3:a:zeromq:zeromq:3.1.0
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cpe:2.3:a:zeromq:zeromq:3.2.0
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cpe:2.3:a:zeromq:zeromq:3.2.1
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cpe:2.3:a:zeromq:zeromq:3.2.2
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cpe:2.3:a:zeromq:zeromq:3.2.3
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cpe:2.3:a:zeromq:zeromq:3.2.4
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cpe:2.3:a:zeromq:zeromq:3.2.5
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cpe:2.3:a:zeromq:zeromq:4.0.0
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cpe:2.3:a:zeromq:zeromq:4.0.1
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cpe:2.3:a:zeromq:zeromq:4.0.2
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cpe:2.3:a:zeromq:zeromq:4.0.3
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cpe:2.3:a:zeromq:zeromq:4.0.4
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cpe:2.3:a:zeromq:zeromq:4.0.5
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cpe:2.3:a:zeromq:zeromq:4.0.6
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cpe:2.3:a:zeromq:zeromq:4.0.7
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cpe:2.3:a:zeromq:zeromq:4.1.0
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cpe:2.3:a:zeromq:zeromq:4.1.1
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cpe:2.3:a:zeromq:zeromq:4.1.2
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cpe:2.3:a:zeromq:zeromq:4.1.3
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cpe:2.3:a:zeromq:zeromq:4.1.4
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cpe:2.3:a:zeromq:zeromq:4.1.5
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cpe:2.3:a:zeromq:zeromq:4.1.6
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cpe:2.3:a:zeromq:zeromq:4.1.7
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:redhat:enterprise_linux:7.0