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    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 LMP_SCO_Link_Request packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections (disabling the AB5301A inquiry and page scan procedures) via a crafted LMP packet. The user needs to manually perform a power cycle (restart) of the device to restore BT connectivity.

    Published:Sep 7, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 7, 2021
    EPSS Score:0.00138
    CVSS Score:6.5

    Affected Products

    Vendor
    Zh-jieli
    Product
    Ac6936
    Vendor
    Zh-jieli
    Product
    Ac6951
    Vendor
    Zh-jieli
    Product
    Ac6952
    Vendor
    Zh-jieli
    Product
    Ac6954
    Vendor
    Zh-jieli
    Product
    Ac6955
    Vendor
    Zh-jieli
    Product
    Ac6956
    Vendor
    Zh-jieli
    Product
    Ac6963
    Vendor
    Zh-jieli
    Product
    Ac6965
    Vendor
    Zh-jieli
    Product
    Ac6966
    Vendor
    Zh-jieli
    Product
    Ac6969
    Vendor
    Zh-jieli
    Product
    Ac6973
    Vendor
    Zh-jieli
    Product
    Ac6976
    Vendor
    Zh-jieli
    Product
    Ac6983
    Vendor
    Zh-jieli
    Product
    Ac6986
    Vendor
    Zh-jieli
    Product
    Fw-ac63 Bt Sdk

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High