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Date: Wed, 16 Oct 2019 13:05:58 -0500
From: ISC Security Officer <>
Cc: ISC Security Officer <>
Subject: BIND9 CVE-2019-6475 and CVE-2019-6476

Today (2019-10-16) ISC announced two vulnerabilities in our BIND 9 software.

   CVE-2019-6475, a DNSSEC validation bypass for mirror zones

   CVE-2019-6476, a flaw in QNAME minimization that can lead to
                  an assertion failure.

These issues affect all prior BIND 9.14 releases and all prior BIND 9.15

Our full CVE text can be found at:

New releases of BIND, including security fixes for this vulnerability,
are available at:

Release notes for the new versions can be obtained using the following

Brian Conry
ISC Support
Acting Security Officer

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