CVE-2021-20234

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Source
https://cve.org/CVERecord?id=CVE-2021-20234
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20234.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-20234
Aliases
  • GHSA-wfr2-29gj-5w87
Downstream
Published
2021-04-01T14:15:13.123Z
Modified
2026-07-09T01:07:34.171553Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compromised servers to crash. The highest threat from this vulnerability is to system availability.

References

Affected packages

Git / github.com/zeromq/libzmq

Affected ranges

Type
GIT
Repo
https://github.com/zeromq/libzmq
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
04f5bbedee58c538934374dc45182d8fc5926fa3
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v3.*
v3.1.0
v4.*
v4.2.0
v4.2.0-rc1
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.3.0
v4.3.1
v4.3.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20234.json"