ISC BIND 9.9.8-S < 9.9.8-S7 / 9.9.9-S < 9.9.9-S7 / 9.11.0 < 9.11.0-P2 DoS

high Nessus Network Monitor Plugin ID 9967


The remote DNS server may be affected by a Denial of Service (DoS) attack vector.


Versions of ISC BIND 9.9.8-S prior to 9.9.8-S7, 9.9.9-S prior to 9.9.9-S7, and 9.11.0 prior to 9.11.0-P2 are unpatched for a flaw in the 'nxdomain-redirect' functionality in 'db.c' that is triggered when handling a specially crafted query. This may allow a remote attacker to cause a crash.


Upgrade ISC BIND to version 9.11.0-P2 or later. If version 9.11.x cannot be obtained, 9.9.9-S7 and 9.9.8-S7 have also been patched for these issues.

See Also

Plugin Details

Severity: High

ID: 9967

Family: DNS Servers

Published: 2/17/2017

Updated: 3/6/2019

Nessus ID: 96625

Risk Information


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:ND/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 7.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Patch Publication Date: 1/11/2017

Vulnerability Publication Date: 1/11/2017

Reference Information

CVE: CVE-2016-9778

BID: 95388