ArchLinux: 202003-13: bluez: access restriction bypass

    Date20 Mar 2020
    Posted ByLinuxSecurity Advisories
    The package bluez before version 5.54-1 is vulnerable to access restriction bypass.
    Arch Linux Security Advisory ASA-202003-13
    Severity: High
    Date    : 2020-03-19
    CVE-ID  : CVE-2020-0556
    Package : bluez
    Type    : access restriction bypass
    Remote  : Yes
    Link    :
    The package bluez before version 5.54-1 is vulnerable to access
    restriction bypass.
    Upgrade to 5.54-1.
    # pacman -Syu "bluez>=5.54-1"
    The problem has been fixed upstream in version 5.54.
    It was discovered that the HID and HOGP profiles implementations in
    bluez before 5.54 don't specifically require bonding between the device
    and the host. This creates an opportunity for a malicious device to
    connect to a target host to either impersonate an existing HID device
    without security or to cause an SDP or GATT service discovery to take
    place which would allow HID reports to be injected to the input
    subsystem from a non-bonded source.
    This potentially enables an unauthenticated attacker with adjacent
    access to impersonate an existing HID device, cause a denial of service
    or escalate privileges.
    An unauthenticated attacker with adjacent access can impersonate an
    existing HID device, or cause a denial of service.
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