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