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    Gentoo: GLSA-202012-17: D-Bus: Denial of service

    Date 23 Dec 2020
    110
    Posted By LinuxSecurity Advisories
    A local Denial of Service vulnerability was discovered in D-Bus.
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    Gentoo Linux Security Advisory                           GLSA 202012-17
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                                                https://security.gentoo.org/
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      Severity: Low
         Title: D-Bus: Denial of service
          Date: December 23, 2020
          Bugs: #755392
            ID: 202012-17
    
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    Synopsis
    ========
    
    A local Denial of Service vulnerability was discovered in D-Bus.
    
    Background
    ==========
    
    D-Bus is a message bus system which processes can use to talk to each
    other.
    
    Affected packages
    =================
    
         -------------------------------------------------------------------
          Package              /     Vulnerable     /            Unaffected
         -------------------------------------------------------------------
       1  sys-apps/dbus               < 1.12.20                 >= 1.12.20
    
    Description
    ===========
    
    It was discovered that D-Bus did not properly handle the situation when
    two usernames have the same numeric UID.
    
    Impact
    ======
    
    An attacker could possibly cause a Denial of Service condition or
    trigger other undefined behavior, possibly including incorrect
    authorization decisions.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All D-Bus users should upgrade to the latest version:
    
       # emerge --sync
       # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.20"
    
    References
    ==========
    
    [ 1 ] dbus 1.12.20 security update announcement
     
    https://lists.freedesktop.org/archives/ftp-release/2020-July/000758.html
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
      https://security.gentoo.org/glsa/202012-17
    
    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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