ISC BIND 9.x < 9.9.8-P4 / 9.9.8-S6 / 9.9.9-S3 / 9.10.3-P4 Multiple DoS

High Nessus Network Monitor Plugin ID 9872

Synopsis

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

Description

Versions of ISC BIND 9.x prior to 9.9.8-P4, 9.9.8-S6, 9.9.9-S3 and 9.10.3-P4 are unpatched for the following vulnerabilities :

- A flaw exists in 'sexpr.c' and 'alist.c' that is triggered when handling specially crafted control channel packets, as controlled by the the 'rndc' server control utility. This may allow a remote attacker to cause a server to stop responding. (OSVDB 135663)
- A flaw exists in 'resolver.c' and 'db.c' that is triggered when handling specially crafted DNAME resource record signatures. This may allow a remote attacker to cause a denial of service. (OSVDB 135664)

Solution

Upgrade ISC BIND to version 9.10.3-P4 or later. If version 9.10.x cannot be obtained, versions 9.9.9-S3, 9.9.8-S6 and 9.9.8-P4 are also patched for these vulnerabilities.

See Also

https://source.isc.org/cgi-bin/gitweb.cgi?p=bind9.git;a=blob_plain;f=CHANGES

https://kb.isc.org/article/AA-01352

https://kb.isc.org/article/AA-01353

https://kb.isc.org/article/AA-01398

Plugin Details

Severity: High

ID: 9872

File Name: 9872.prm

Family: DNS Servers

Published: 2017/01/20

Modified: 2017/01/20

Dependencies: 1003

Nessus ID: 89998, 89999

Risk Information

Risk Factor: High

CVSSv2

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

CVSSv3

Base Score: 7.5

Temporal Score: 7.2

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Patch Publication Date: 2016/03/09

Vulnerability Publication Date: 2016/03/09

Reference Information

CVE: CVE-2016-1285, CVE-2016-1286