USN-5126-2: Bind vulnerability
28 October 2021
Bind could be made to consume resources if it received specially crafted network traffic.
Releases
Packages
- bind9 - Internet Domain Name Server
Details
USN-5126-1 fixed a vulnerability in Bind. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
Kishore Kumar Kothapalli discovered that Bind incorrectly handled the lame
cache when processing responses. A remote attacker could possibly use this
issue to cause Bind to consume resources, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
bind9
-
1:9.10.3.dfsg.P4-8ubuntu1.19+esm1
Available with Ubuntu Pro
Ubuntu 14.04
-
bind9
-
1:9.9.5.dfsg-3ubuntu0.19+esm5
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5126-1: libirs-export160, libdns1100, libisccfg-export160, bind9-dev, bind9utils, libbind-export-dev, bind9, libirs160, bind9-host, libisccc-export160, bind9-dnsutils, bind9-utils, libbind-dev, liblwres160, libisc-export169, libisc169, libdns-export1100, libisccfg160, bind9-doc, dnsutils, bind9-libs, libisccc160, libbind9-160