VulnerabilityModified
CVE-2021-20234
An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp.
MEDIUM 6.5EPSS 1.07%
Does this matter?
Lower severity and a low EPSS score (1.07%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.07% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-401
- Affected
- zeromq/libzmq
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1921972Issue Tracking, Patch, Third Party Advisory
- https://github.com/zeromq/libzmq/security/advisories/GHSA-wfr2-29gj-5w87Exploit, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1921972Issue Tracking, Patch, Third Party Advisory
- https://github.com/zeromq/libzmq/security/advisories/GHSA-wfr2-29gj-5w87Exploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.