Memory Leak Vulnerability in ZeroMQ Client by ZeroMQ
CVE-2021-20234

6.5MEDIUM

Key Information:

Vendor

ZeroMQ

Status
ZeroMQ
Vendor
CVE Published:
1 April 2021

What is CVE-2021-20234?

A flaw in the ZeroMQ client prior to version 4.3.3 allows for uncontrolled resource consumption due to a memory leak. This vulnerability can be exploited by connecting the client to multiple malicious or compromised servers, leading to crashes and significant impacts on system availability. Users are advised to upgrade to the latest version to mitigate this issue.

Affected Version(s)

zeromq zeromq 4.3.3

References

https://bugzilla.redhat.com/show_bug.cgi?id=1921972
x_refsource_MISC
https://github.com/zeromq/libzmq/security/advisories/GHSA...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.