ISC BIND 9.x < 9.9.8-P2 / 9.9.8-S3 / 9.9.9-S3 / 9.10.3-P2 DoS

medium Nessus Network Monitor Plugin ID 9867


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


Versions of ISC BIND prior to 9.9.8-P2, 9.9.8-S3, 9.9.9-S3 and 9.10.3-P2 are unpatched for a flaw in 'db.c' that is triggered when responses with incorrect class attributes are incorrectly parsed. This may potentially allow a remote attacker to trigger a REQUIRE assertion failure and cause a denial of service.


Upgrade ISC BIND to version 9.10.3-P2 or later. If version 9.10.x cannot be obtained, versions 9.9.9-S3, 9.10.2-P4, 9.9.8-S3, and 9.9.8-P2 are also patched for this vulnerability.

See Also

Plugin Details

Severity: Medium

ID: 9867

Family: DNS Servers

Published: 1/19/2017

Updated: 3/6/2019

Nessus ID: 87502

Risk Information


Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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


Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:H/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: 12/15/2015

Vulnerability Publication Date: 12/15/2015

Reference Information

CVE: CVE-2015-8000

BID: 79349