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Uncontrolled Resource Consumption

CVE-2021-20234

Medium
6.5/10

Summary

An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.0.10, 4.1.0 through 4.1.7 and 4.2.x through 4.3.2 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.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • REQUIRED
  • NONE
  • NONE
  • HIGH

CWE-400 - Uncontrolled resource consumption

An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.

References

Advisory Timeline

  • Published