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[SECURITY] [DLA 805-1] bind9 security update



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Package        : bind9
Version        : 1:9.8.4.dfsg.P1-6+nmu2+deb7u14
CVE ID         : CVE-2016-9131 CVE-2016-9147 CVE-2016-9444

Several denial-of-service vulnerabilities (assertion failures) were
discovered in BIND, a DNS server implementation.

CVE-2016-9131

    A crafted upstream response to an ANY query could cause an
    assertion failure.

CVE-2016-9147

    A crafted upstream response with self-contradicting DNSSEC data
    could cause an assertion failure.

CVE-2016-9444

    Specially-crafted upstream responses with a DS record could cause
    an assertion failure.

These vulnerabilities predominantly affect DNS servers providing
recursive service.  Client queries to authoritative-only servers
cannot trigger these assertion failures.  These vulnerabilities are
present whether or not DNSSEC validation is enabled in the server
configuration.

For Debian 7 "Wheezy", these problems have been fixed in version
1:9.8.4.dfsg.P1-6+nmu2+deb7u14.

We recommend that you upgrade your bind9 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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