Debian alert DLA-957-1 (bind9)

From:
    	     
 
Thorsten Alteholz <debian@alteholz.de> 
To:
    	     
 
debian-lts-announce@lists.debian.org 
Subject:
    	     
 
[SECURITY] [DLA 957-1] bind9 security update 
Date:
    	     
 
Sun, 28 May 2017 15:21:05 +0200 (CEST)
Message-ID:
    	     
 
<alpine.DEB.2.02.1705281520050.2073@jupiter.server.alteholz.net>
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Package        : bind9
Version        : 1:9.8.4.dfsg.P1-6+nmu2+deb7u16
CVE ID         : CVE-2017-3136 CVE-2017-3137 CVE-2017-3138

CVE-2017-3136

     Oleg Gorokhov of Yandex discovered that BIND does not properly
     handle certain queries when using DNS64 with the "break-dnssec yes;"
     option, allowing a remote attacker to cause a denial-of-service.

CVE-2017-3137

     It was discovered that BIND makes incorrect assumptions about the
     ordering of records in the answer section of a response containing
     CNAME or DNAME resource records, leading to situations where BIND
     exits with an assertion failure. An attacker can take advantage of
     this condition to cause a denial-of-service.

CVE-2017-3138

     Mike Lalumiere of Dyn, Inc. discovered that BIND can exit with a
     REQUIRE assertion failure if it receives a null command string on
     its control channel. Note that the fix applied in Debian is only
     applied as a hardening measure. Details about the issue can be found
     at https://kb.isc.org/article/AA-01471 .


For Debian 7 "Wheezy", these problems have been fixed in version
1:9.8.4.dfsg.P1-6+nmu2+deb7u16.

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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