SWRA788 august   2023 WL1801 , WL1801MOD , WL1805MOD , WL1807MOD , WL1831 , WL1831MOD , WL1835MOD , WL1837MOD

 

  1.   1
  2.   Summary
  3.   Vulnerability

Summary

In certain cases, the PN used by the WL18xx firmware when transmitting packets can increment beyond the PN stored by the host-side driver for WL18xx. The host-side PN value is used to recover the system if a reset is required. If a device recovery is triggered, the PN will be restored by the value saved in the host, which can cause the WL18xx device to repeat PN numbers in subsequent transmitted packets without changing keys.