USN-4365-1: Bind vulnerabilities
19 May 2020
Several security issues were fixed in Bind.
Releases
Packages
- bind9 - Internet Domain Name Server
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 20.04
Ubuntu 19.10
Ubuntu 18.04
Ubuntu 16.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4365-2: liblwres80, bind9-host, host, libbind-dev, bind9, liblwres90, bind9utils, bind9-doc, libbind9-80, dnsutils, libisc83, libisccc80, lwresd, libisccc90, libisccfg82, libdns81, libisccfg90, libbind9-90, libisc95, libdns100