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  • [gentoo-announce] [ GLSA 202305-09 ] syslog-ng: Denial of Service

    From glsamaker@gentoo.org@21:1/5 to All on Wed May 3 12:10:02 2023
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    Gentoo Linux Security Advisory GLSA 202305-09
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    https://security.gentoo.org/
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    Severity: Normal
    Title: syslog-ng: Denial of Service
    Date: May 03, 2023
    Bugs: #891941
    ID: 202305-09

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    Synopsis
    ========

    A denial of service vulnerability was discovered in rsyslog related to
    syslog input over the network.

    Background
    ==========

    syslog replacement with advanced filtering features.

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

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 app-admin/syslog-ng < 3.38.1 >= 3.38.1

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

    An integer overflow in the RFC3164 parser allows remote attackers to
    cause a denial of service via crafted syslog input that is mishandled by
    the tcp or network function.

    Impact
    ======

    Attackers with access to input syslogs over syslog-ng's network
    functionality can cause a denial of service.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All syslog-ng users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-3.38.1"

    References
    ==========

    [ 1 ] CVE-2022-38725
    https://nvd.nist.gov/vuln/detail/CVE-2022-38725

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

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

    https://security.gentoo.org/glsa/202305-09

    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 2023 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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