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    Gentoo: GLSA-202008-06: iproute2: Denial of service

    Date
    300
    Posted By
    A use-after-free was found in iproute2, possibly allowing a Denial of Service condition.
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    Gentoo Linux Security Advisory                           GLSA 202008-06
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                                               https://security.gentoo.org/
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     Severity: Normal
        Title: iproute2: Denial of service
         Date: August 08, 2020
         Bugs: #722144
           ID: 202008-06
    
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    Synopsis
    ========
    
    A use-after-free was found in iproute2, possibly allowing a Denial of
    Service condition.
    
    Background
    ==========
    
    iproute2 is a set of tools for managing Linux network routing and
    advanced features.
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  sys-apps/iproute2            < 5.1.0                    >= 5.1.0
    
    Description
    ===========
    
    iproute2 was found to contain a use-after-free in get_netnsid_from_name
    in ip/ipnetns.c.
    
    Impact
    ======
    
    A remote attacker, able to feed iproute2 crafted data, may be able to
    cause a Denial of Service condition.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All iproute2 users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/iproute2-5.1.0"
    
    References
    ==========
    
    [ 1 ] CVE-2019-20795
          https://nvd.nist.gov/vuln/detail/CVE-2019-20795
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202008-06
    
    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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