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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
bionic Not vulnerable
(1:9.11.3+dfsg-1ubuntu1.12)
eoan Not vulnerable
(1:9.11.5.P4+dfsg-5.1ubuntu2.2)
focal
Released (1:9.16.1-0ubuntu2.2)
precise Not vulnerable

trusty Not vulnerable

upstream
Released (9.11.20,9.16.4)
xenial Not vulnerable
(1:9.10.3.dfsg.P4-8ubuntu1.16)

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