CVE-2020-8619

Published: 17 June 2020

In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable.

Priority

Medium

CVSS 3 base score: 4.9

Status

Package Release Status
bind9
Launchpad, Ubuntu, Debian
Upstream
Released (9.11.20,9.16.4)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1:9.16.1-0ubuntu2.2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(1:9.11.3+dfsg-1ubuntu1.12)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(1:9.10.3.dfsg.P4-8ubuntu1.16)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable

Notes

AuthorNote
mdeslaur
upstream advisory says BIND 9.11.14 -> 9.11.19, probably
introduced in race condition fixes introduced in 9.11.4.

References