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  • [gentoo-announce] [ GLSA 202009-12 ] ZeroMQ: Denial of service

    From Thomas Deutschmann@21:1/5 to All on Mon Sep 14 02:00:02 2020
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    Gentoo Linux Security Advisory GLSA 202009-12
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    https://security.gentoo.org/
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    Severity: Normal
    Title: ZeroMQ: Denial of service
    Date: September 13, 2020
    Bugs: #740574
    ID: 202009-12

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    Synopsis
    ========

    A vulnerability in ZeroMQ could lead to a Denial of Service condition.

    Background
    ==========

    Looks like an embeddable networking library but acts like a concurrency framework.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 net-libs/zeromq < 4.3.3 >= 4.3.3

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

    It was discovered that ZeroMQ does not properly handle connecting peers
    before a handshake is completed.

    Impact
    ======

    An unauthenticated remote attacker able to connect to a ZeroMQ
    endpoint, even with CURVE encryption/authentication enabled, can cause
    a Denial of Service condition.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All ZeroMQ users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-libs/zeromq-4.3.3"

    References
    ==========

    [ 1 ] CVE-2020-15166
    https://nvd.nist.gov/vuln/detail/CVE-2020-15166

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

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

    https://security.gentoo.org/glsa/202009-12

    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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