Gentoo: GLSA-202003-49: BlueZ: Security bypass

    Date25 Mar 2020
    162
    Posted ByLinuxSecurity Advisories
    A vulnerability in BlueZ might allow remote attackers to bypass security restrictions.
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    Gentoo Linux Security Advisory                           GLSA 202003-49
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                                               https://security.gentoo.org/
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     Severity: High
        Title: BlueZ: Security bypass
         Date: March 25, 2020
         Bugs: #712292
           ID: 202003-49
    
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    Synopsis
    ========
    
    A vulnerability in BlueZ might allow remote attackers to bypass
    security restrictions.
    
    Background
    ==========
    
    Set of tools to manage Bluetooth devices for Linux.
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  net-wireless/bluez            < 5.54                     >= 5.54
    
    Description
    ===========
    
    It was discovered that the HID and HOGP profiles implementations in
    BlueZ did not specifically require bonding between the device and the
    host.
    
    Impact
    ======
    
    A remote attacker with adjacent access could impersonate an existing
    HID device, cause a Denial of Service condition or escalate privileges.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All BlueZ users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-wireless/bluez-5.54"
    
    References
    ==========
    
    [ 1 ] CVE-2020-0556
          https://nvd.nist.gov/vuln/detail/CVE-2020-0556
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202003-49
    
    Concerns?
    =========
    
    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users' machines is of utmost
    importance to us. Any security concerns should be addressed to
    This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at
    https://bugs.gentoo.org.
    
    License
    =======
    
    Copyright 2020 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).
    
    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.
    
    https://creativecommons.org/licenses/by-sa/2.5
    
    

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