CVE-2021-20234
- 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
- 2021-04-01T14:15:13Z
- Modified
- 2026-10-24T10:50:11Z
- 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.
- Database specific
{ "unresolved_ranges": [ { "cpes": [ "cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "4.3.3" }, { "fixed": "4.3.3" } ], "source": "CPE_RANGE" } ], "vendor_product": "zeromq:libzmq" } ] }- References
Affected packages
Git / github.com/zeromq/libzmq
Affected ranges
- Type
- GIT
- Repo
- https://github.com/zeromq/libzmq
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "4.3.3" } ], "source": "CPE_RANGE" } ] }