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USN-3346-3: Bind vulnerabilities

8 November 2017

Bind could be made to serve incorrect information or expose sensitive information over the network.

Releases

Packages

  • bind9 - Internet Domain Name Server

Details

USN-3346-1 and USN-3346-2 fixed two vulnerabilities in Bind and a regression,
respectively. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Clément Berthaux discovered that Bind did not correctly check TSIG
authentication for zone update requests. An attacker could use this
to improperly perform zone updates. (CVE-2017-3143)

Clément Berthaux discovered that Bind did not correctly check TSIG
authentication for zone transfer requests. An attacker could use this
to improperly transfer entire zones. (CVE-2017-3142)

In addition, this update adds the new root zone key signing key (KSK).

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04

After a standard system update you need to restart Bind to make
all the necessary changes.

Related notices

  • USN-3346-1: dnsutils, liblwres90, libdns-export162-udeb, libdns100, libisc-export160, libisc95, libisccfg140, bind9, libisc-export160-udeb, libirs141, libirs-export141-udeb, libisccc-export140, libdns162, libirs-export141, lwresd, libisccfg90, host, libisccfg-export140, liblwres141, bind9utils, libbind-dev, libbind9-140, libbind-export-dev, libisccc140, libisc160, bind9-doc, libdns-export162, libisccfg-export140-udeb, libisccc-export140-udeb, libisccc90, bind9-host, libbind9-90