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    Gentoo: GLSA-202004-06: GnuTLS: DTLS protocol regression

    Date 02 Apr 2020
    592
    Posted By LinuxSecurity Advisories
    A regression in GnuTLS breaks the security guarantees of the DTLS protocol.
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    Gentoo Linux Security Advisory                           GLSA 202004-06
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                                               https://security.gentoo.org/
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     Severity: Normal
        Title: GnuTLS: DTLS protocol regression
         Date: April 02, 2020
         Bugs: #715602
           ID: 202004-06
    
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    Synopsis
    ========
    
    A regression in GnuTLS breaks the security guarantees of the DTLS
    protocol.
    
    Background
    ==========
    
    GnuTLS is an Open Source implementation of the TLS and SSL protocols.
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  net-libs/gnutls              < 3.6.13                  >= 3.6.13
    
    Description
    ===========
    
    It was discovered that DTLS client did not contribute any randomness to
    the DTLS negotiation.
    
    Impact
    ======
    
    Please review the referenced advisory for details.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All GnuTLS users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.13"
    
    References
    ==========
    
    [ 1 ] GNUTLS-SA-2020-03-31
          https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202004-06
    
    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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