CVE-2021-31609

The CVE-2021-31609 issue affects Silicon Labs iWRAP (Bluegiga WT32i module) up to version 6.3.0 and earlier. The vulnerability arises in the Bluetooth Classic LMP handling when receiving an oversized LMP packet (>17 bytes), which can cause a crash in WT32i when a crafted LMP packet is processe...

CVE-2021-28139

CVE-2021-28139 affects Espressif ESP-IDF 4.4 and earlier. The Bluetooth Classic stack fails to properly restrict the Feature Page on receiving an LMP Feature Response Extended packet, allowing a radio‑range attacker to inject eight bytes of arbitrary data outside the Extended Features Page Table ...

CVE-2021-34147

The CVE-2021-34147 entry concerns the Cypress WICED Bluetooth Classic stack (CYW20735B1) up to version 2.9.0. The fault is in handling a malformed LMP timing accuracy response followed by multiple reconnections to the link slave, which can exhaust the device’s Bluetooth resources and lead to a cr...

CVE-2021-34147

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...

CVE-2021-34148

Technical details about CVE-2021-34148 are not publicly available in the provided connected documents. The materials confirm the affected Cypress WICED BT stack (CYW20735B1) and the DoS symptom but provide no concrete root-cause, impact, or fixes here. Monitor for updates.

CVE-2021-34145

The CVE-2021-34145 issue affects Cypress WICED BT Stack (Bluetooth Classic) up to version 2.9.0 for CYW20735B1. The root cause is improper handling of LMP_max_slot when the Baseband packet type is invalid (LT_ADDRESS/LT_ADDR) after LMP setup, which can let attackers within radio range trigger a d...

CVE-2021-34145

The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMPmaxslot with an invalid Baseband packet type and LTADDRESS and LTADDR after completion of the LMP setup procedure, allowing attackers in radio range...

CVE-2021-34143

The CVE-2021-34143 entry affects the Bluetooth Classic implementation in Zhuhai Jieli AC6366C_DEMO_V1.0. The root cause, as described in the connected documents, is improper handling of continuous unsolicited LMP responses, enabling a nearby attacker to flood the device with LMP_AU_Rand packets a...

CVE-2021-34146

The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart crash of the device by flooding it with LMPAURand packets after the pagi...

CVE-2021-34146

The CVE-2021-34146 entry relates to the Bluetooth Classic implementation in the Cypress CYW920735Q60EVB. The vulnerability stems from improper handling of continuous unsolicited LMP responses, enabling an attacker within radio range to cause a denial of service and device restart by flooding the ...

CVE-2021-34146

The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart crash of the device by flooding it with LMPAURand packets after the pagi...

CVE-2021-34149

The Bluetooth Classic implementation on the Texas Instruments CC256XCQFN-EM does not properly handle the reception of continuous LMPAURand packets, allowing attackers in radio range to trigger a denial of service deadlock of the device by flooding it with LMPAURand packets after the paging...

CVE-2021-34149

The CVE-2021-34149 entry concerns the Bluetooth Classic implementation on the Texas Instruments CC256XCQFN-EM. The flaw arises in handling continuous LMP_AU_Rand packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device by flooding it after paging. The pro...

CVE-2021-34150

The Bluetooth Classic implementation on Bluetrum AB5301A devices with unknown firmware versions does not properly handle the reception of oversized DM1 LMP packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections disabling the AB5301A inqui...

CVE-2021-34144

The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMPSCOLinkRequest packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections disabling the AB5301A inqui...

CVE-2021-34144

The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMPSCOLinkRequest packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections disabling the AB5301A inqui...

CVE-2021-31613

The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle the reception of a truncated LMP packet during the LMP auto rate procedure, allowing attackers in radio range to immediately crash and restart a device via a crafted LMP packet...

CVE-2021-28135

The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service crash in ESP32 by flooding the target device with LMP Feature Response data...

Design/Logic Flaw

The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service crash in ESP32 by flooding the target device with LMP Feature Response data...

Information disclosure

The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle the reception of a truncated LMP packet during the LMP auto rate procedure, allowing attackers in radio range to immediately crash and restart a device via a crafted LMP packet...