USN-3893-2: Bind vulnerabilities

25 February 2019

Several security issues were fixed in Bind.



  • bind9 - Internet Domain Name Server


USN-3893-1 fixed a vulnerability in Bind. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that Bind incorrectly handled certain trust anchors when
used with the "managed-keys" feature. A remote attacker could possibly use
this issue to cause Bind to crash, resulting in a denial of service.

It was discovered that Bind incorrectly handled certain controls for zone
transfers, contrary to expectations. (CVE-2019-6465)

Update instructions

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

Ubuntu 12.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-3893-1: bind9-doc, libdns-export1100-udeb, bind9-host, libisccc140, libisccfg160, libirs-export160-udeb, libbind9-140, libbind9-90, libirs141, host, libisc-export160-udeb, libisccc-export160, libisc169, libdns-export1102, libisc-export160, libdns1102, libdns-export1102-udeb, libirs-export141, libisccc160, libisccfg-export140-udeb, libdns-export1100, libisccc-export140-udeb, libirs-export141-udeb, libisc-export169-udeb, dnsutils, bind9utils, libirs160, libisccfg140, libisccfg-export140, libdns-export162, libisccfg-export160, libisccc90, libdns162, libbind-dev, libirs-export160, libisccc-export140, libisccc-export160-udeb, libdns-export162-udeb, libdns100, libisccfg90, libdns1100, libisc-export169, libisc95, liblwres160, liblwres90, libisc160, bind9, libbind-export-dev, lwresd, libisccfg-export160-udeb, liblwres141, libbind9-160