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: 2017/02/17

Updated: 2019/03/06

Dependencies: 1003

Nessus ID: 96625

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSS v3.0

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: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Patch Publication Date: 2017/01/11

Vulnerability Publication Date: 2017/01/11

Reference Information

CVE: CVE-2016-9778

BID: 95388