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prionPRIOn knowledge basePRION:CVE-2021-34147
HistorySep 07, 2021 - 7:15 a.m.

Information disclosure

2021-09-0707:15:00
PRIOn knowledge base
www.prio-n.com
5

0.001 Low

EPSS

Percentile

29.2%

The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 does not properly handle the reception of a malformed LMP timing accuracy response followed by multiple reconnections to the link slave, allowing attackers to exhaust device BT resources and eventually trigger a crash via multiple attempts of sending a crafted LMP timing accuracy response followed by a sudden reconnection with a random BDAddress.

0.001 Low

EPSS

Percentile

29.2%