USN-4468-2: Bind vulnerability
24 August 2020
Bind could be made to crash if it received a specially crafted request.
Releases
Packages
- bind9 - Internet Domain Name Server
Details
USN-4468-1 fixed a vulnerability in Bind. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
Dave Feldman, Jeff Warren, and Joel Cunningham discovered that Bind
incorrectly handled certain truncated responses to a TSIG-signed request. A
remote attacker could possibly use this issue to cause Bind to crash,
resulting in a denial of service. (CVE-2020-8622)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
Ubuntu 12.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4468-1: libisc169, libisc-export169, libisccc160, bind9-libs, libbind9-140, libisccc-export160-udeb, libirs-export141-udeb, dnsutils, bind9-dnsutils, libdns1100, libirs-export160, libbind9-160, liblwres160, libisccfg-export160-udeb, host, libisccc-export140, libisc-export169-udeb, libisccc-export160, libisccfg140, bind9-doc, libdns-export162-udeb, libdns162, libirs141, libisc-export160-udeb, libisc160, libisccc140, libirs-export141, liblwres141, bind9, libisccfg-export140-udeb, bind9-host, libisccfg-export140, lwresd, libbind-export-dev, libisccc-export140-udeb, libdns-export1100, libdns-export162, bind9-utils, libdns-export1100-udeb, libisccfg160, libirs160, libbind-dev, libirs-export160-udeb, libisccfg-export160, libisc-export160, bind9utils