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Advisories

BlueKitchen BTstack through 1.8.2 A2DP SEP Discovery Out-of-Bounds Write

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severity
high
date
Affecting

  • BTstack <= 1.8.2

CWE
  • CWE-787 Out-of-bounds Write
  • CWE-1284 Improper Validation of Specified Quantity in Input
CVSS
7.0
CVSS V4 Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
Eun0us / Espilon
Description
BlueKitchen BTstack through 1.8.2 fails to validate the peer-reported endpoint count against table bounds in A2DP stream endpoint discovery. A bonded peer can send an AVDTP DISCOVER response with more endpoints than the fixed table holds, causing out-of-bounds writes that corrupt adjacent static objects and crash the process or sever event delivery.

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