Debian Long Term Support / LTS Security Information / 2020 / Security Information -- DLA-2355-1 bind9

Debian Security Advisory

DLA-2355-1 bind9 -- LTS security update

Date Reported:

29 Aug 2020

Affected Packages:

bind9

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2020-8622, CVE-2020-8623.

More information:

Two issues have been found in bind9, an Internet Domain Name Server.

• CVE-2020-8622

  Crafted responses to TSIG-signed requests could lead to an assertion failure, causing the server to exit. This could be done by malicious server operators or guessing attackers.

• CVE-2020-8623

  An assertions failure, causing the server to exit, can be exploited by a query for an RSA signed zone.

  For Debian 9 stretch, these problems have been fixed in version 1:9.10.3.dfsg.P4-12.3+deb9u7.

  We recommend that you upgrade your bind9 packages.

  For the detailed security status of bind9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/bind9

  Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS