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  • [gentoo-announce] [ GLSA 202011-01 ] BlueZ: Arbitrary code execution

    From Sam James@21:1/5 to All on Tue Nov 3 02:00:02 2020
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    Gentoo Linux Security Advisory GLSA 202011-01
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    https://security.gentoo.org/
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    Severity: Normal
    Title: BlueZ: Arbitrary code execution
    Date: November 03, 2020
    Bugs: #749285
    ID: 202011-01

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    Synopsis
    ========

    A vulnerability in BlueZ might allow remote attackers to execute
    arbitrary code.

    Background
    ==========

    Set of tools to manage Bluetooth devices for Linux.

    Affected packages
    =================

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 net-wireless/bluez < 5.55 >= 5.55

    Description
    ===========

    It was discovered that there was a double-free vulnerability in Bluez
    after the service discovery which occurs after a Bluetoth Low Energy
    (BLE) connection has been established to a device.

    Impact
    ======

    A remote attacker, by enticing a user to connect to a malicious GATT
    server or device, could cause the execution of arbitrary code with the privileges of the user running gatttool client or cause a Denial of
    Service condition.

    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-5.55"

    References
    ==========

    [ 1 ] CVE-2020-27153
    https://nvd.nist.gov/vuln/detail/CVE-2020-27153

    Availability
    ============

    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:

    https://security.gentoo.org/glsa/202011-01

    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 security@gentoo.org 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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