Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-4365-2: Bind vulnerabilities

20 May 2020

Several security issues were fixed in Bind.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

Related notices

  • USN-4365-1: libirs-export161-udeb, libirs-export141-udeb, libdns-export162, libirs160, libdns1104, libisc-export160, libisccfg160, libisc-export169, libisccfg-export163-udeb, libdns162, libisccc161, bind9-host, libirs141, libbind-dev, libisccc-export161-udeb, libisccfg-export140, libdns-export1104-udeb, libisccfg-export140-udeb, bind9, libdns-export1100-udeb, libisccc-export140-udeb, libbind9-160, dnsutils, libbind-export-dev, libbind9-161, libisccc-export140, libirs161, libisccc-export160-udeb, libisccfg-export160, libirs-export161, liblwres160, bind9-libs, libdns-export162-udeb, liblwres141, libisccfg-export160-udeb, bind9utils, libisccc-export160, lwresd, libisc-export1100, libdns-export1100, libisc-export1100-udeb, bind9-doc, bind9-dnsutils, libdns1100, libisccc160, libisccfg163, libbind9-140, libisccfg-export163, libisc160, libirs-export160, liblwres161, libisc169, libirs-export141, libisc-export160-udeb, libisccc-export161, libisccc140, host, libisccfg140, libisc1100, libirs-export160-udeb, libdns-export1104, bind9-utils, libisc-export169-udeb