Debian: DSA-4752-1: bind9 security update
Summary
CVE-2020-8619
It was discovered that an asterisk character in an empty non-
terminal can cause an assertion failure, resulting in denial
of service.
CVE-2020-8622
Dave Feldman, Jeff Warren, and Joel Cunningham reported that a
truncated TSIG response can lead to an assertion failure, resulting
in denial of service.
CVE-2020-8623
Lyu Chiy reported that a flaw in the native PKCS#11 code can lead
to a remotely triggerable assertion failure, resulting in denial
of service.
CVE-2020-8624
Joop Boonen reported that update-policy rules of type "subdomain"
are enforced incorrectly, allowing updates to all parts of the zone
along with the intended subdomain.
For the stable distribution (buster), these problems have been fixed in
version 1:9.11.5.P4+dfsg-5.1+deb10u2.
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/source-package/bind9
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org