Linux Security
    Linux Security
    Linux Security

    Gentoo: GLSA-202012-18: PowerDNS: information disclosure

    Date 23 Dec 2020
    237
    Posted By LinuxSecurity Advisories
    An information disclosure vulnerability in PowerDNS allow remote attackers to obtain sensitive information.
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gentoo Linux Security Advisory                           GLSA 202012-18
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                                https://security.gentoo.org/
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
      Severity: Low
         Title: PowerDNS: information disclosure
          Date: December 23, 2020
          Bugs: #744160
            ID: 202012-18
    
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
    Synopsis
    ========
    
    An information disclosure vulnerability in PowerDNS allow remote
    attackers to obtain sensitive information.
    
    Background
    ==========
    
    The PowerDNS nameserver is an authoritative-only nameserver which uses
    a flexible backend architecture.
    
    Affected packages
    =================
    
         -------------------------------------------------------------------
          Package              /     Vulnerable     /            Unaffected
         -------------------------------------------------------------------
       1  net-dns/pdns                 < 4.3.1                    >= 4.3.1
    
    Description
    ===========
    
    It was discovered that PowerDNS did not properly handle certain unknown
    records.
    
    Impact
    ======
    
    An authorized attacker with the ability to insert crafted records into
    a zone might be able to leak the content of uninitialized memory.
    Crafted records cannot be inserted via AXFR.
    
    Workaround
    ==========
    
    Do not take zone data from untrusted users.
    
    Resolution
    ==========
    
    All PowerDNS users should upgrade to the latest version:
    
       # emerge --sync
       # emerge --ask --oneshot --verbose ">=net-dns/pdns-4.3.1"
    
    References
    ==========
    
    [ 1 ] CVE-2020-17482
           https://nvd.nist.gov/vuln/detail/CVE-2020-17482
    [ 2 ] PowerDNS Security Advisory 2020-05
     
    https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
      https://security.gentoo.org/glsa/202012-18
    
    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
    
    

    Advisories

    LinuxSecurity Poll

    'Tis the season of giving! How have you given back to the open-source community?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/49-tis-the-season-of-giving-how-have-you-given-back-to-the-open-source-community?task=poll.vote&format=json
    49
    radio
    [{"id":"171","title":"I've contributed to the development of an open-source project.","votes":"22","type":"x","order":"1","pct":34.92,"resources":[]},{"id":"172","title":"I've reviewed open-source code for security bugs.","votes":"13","type":"x","order":"2","pct":20.63,"resources":[]},{"id":"173","title":"I've made a donation to an open-source project.","votes":"28","type":"x","order":"3","pct":44.44,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

    Please vote first in order to view vote results.


    VIEW MORE POLLS

    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.