USN-4365-2: Bind vulnerabilities
20 May 2020
Several security issues were fixed in Bind.
Releases
Packages
- bind9 - Internet Domain Name Server
Details
USN-4365-1 fixed several vulnerabilities in Bind. This update provides
the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.
Original advisory details:
Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Bind
incorrectly limited certain fetches. A remote attacker could possibly use
this issue to cause Bind to consume resources, leading to a denial of
service, or possibly use Bind to perform a reflection attack.
(CVE-2020-8616)
Tobias Klein discovered that Bind incorrectly handled checking TSIG
validity. A remote attacker could use this issue to cause Bind to crash,
resulting in a denial of service, or possibly perform other attacks.
(CVE-2020-8617)
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-4365-1: host, libbind-export-dev, libisc169, libisc-export160-udeb, libisc-export169-udeb, libisc160, bind9-utils, libisc1100, libirs160, libirs-export141-udeb, libirs161, libisc-export169, libdns-export1100-udeb, libbind9-161, libdns-export1104-udeb, bind9-dnsutils, libbind9-160, liblwres141, libirs-export141, libirs141, libdns-export162-udeb, libisccfg-export160, libisccfg-export163-udeb, libisccfg140, libisccc-export161, libisc-export1100-udeb, bind9-libs, libdns-export1104, libisc-export1100, libisc-export160, libisccc-export140-udeb, libdns1104, libisccc160, bind9, liblwres161, libisccc-export160-udeb, libirs-export160, libisccfg160, libdns-export162, bind9-host, libdns162, libbind-dev, libisccfg-export163, libirs-export161, liblwres160, dnsutils, libisccfg163, libisccc-export140, libisccc-export161-udeb, libdns1100, bind9utils, libbind9-140, libisccc-export160, libisccc140, libisccfg-export140, libisccfg-export160-udeb, libirs-export160-udeb, libisccfg-export140-udeb, libisccc161, lwresd, bind9-doc, libdns-export1100, libirs-export161-udeb