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Out-of-bounds Write

CVE-2021-45934

Medium
4.3/10

Summary

wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_HandlePacket and MqttClient_WaitType).

  • MEDIUM
  • NETWORK
  • NONE
  • NONE
  • NONE
  • PARTIAL

CWE-787 - Out-of-Bounds Write

Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.

References

Advisory Timeline

  • Published