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: bind9-doc, libbind-export-dev, libbind9-140, libdns-export162, libisc-export160-udeb, libisccc-export161-udeb, libisc-export1100, liblwres161, libisccc-export160, libirs141, libisccfg-export163-udeb, libdns-export162-udeb, libirs-export161, libdns-export1100-udeb, libisc-export1100-udeb, libisccc140, bind9, bind9-libs, host, libisccc-export161, libisccc160, libisccc-export140-udeb, bind9-dnsutils, libisccc-export140, libisccfg140, libbind9-161, libisccc161, libisccfg-export160-udeb, libisccfg-export140, libirs-export160, libirs161, libisc-export169, libisc-export169-udeb, libisc169, libisccfg160, bind9-utils, libbind-dev, libdns1104, libirs-export160-udeb, libbind9-160, libirs-export141-udeb, libirs-export161-udeb, libdns-export1104-udeb, libisc160, libisccfg163, libdns-export1100, lwresd, liblwres160, liblwres141, libdns1100, bind9utils, libirs160, libdns-export1104, bind9-host, libisccfg-export163, libisccfg-export160, dnsutils, libisc-export160, libisccc-export160-udeb, libisc1100, libisccfg-export140-udeb, libdns162, libirs-export141