CVE-2016-6170 : ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1

ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via a large UPDATE message.

Published 2016-07-06 14:59:06

Updated 2020-08-25 20:19:45

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2016-6170

Redhat » Enterprise Linux » Version: 6.0
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux » Version: 5.0
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
Matching versions
ISC » Bind
Versions from including (>=) 9.0 and up to, including, (<=) 9.9.8
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Matching versions
ISC » Bind
Versions from including (>=) 9.10.0 and up to, including, (<=) 9.10.3
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.11.0 Update A1
cpe:2.3:a:isc:bind:9.11.0:a1:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.11.0 Update A2
cpe:2.3:a:isc:bind:9.11.0:a2:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.11.0 Update A3
cpe:2.3:a:isc:bind:9.11.0:a3:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.11.0 Update B1
cpe:2.3:a:isc:bind:9.11.0:b1:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.9.9
cpe:2.3:a:isc:bind:9.9.9:-:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.9.9 Update P1
cpe:2.3:a:isc:bind:9.9.9:p1:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.10.4
cpe:2.3:a:isc:bind:9.10.4:-:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.10.4 Update P1
cpe:2.3:a:isc:bind:9.10.4:p1:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.9.9 Update Beta1
cpe:2.3:a:isc:bind:9.9.9:beta1:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.9.9 Update Beta2
cpe:2.3:a:isc:bind:9.9.9:beta2:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2016-6170

Top countries where our scanners detected CVE-2016-6170

Top open port discovered on systems with this issue 53

IPs affected by CVE-2016-6170 415,024

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2016-6170!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-6170

EPSS FAQ

0.89%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 73 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-6170

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2016-6170

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-6170

https://security.gentoo.org/glsa/201610-07

BIND: Multiple vulnerabilities (GLSA 201610-07) — Gentoo security
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/07/06/3

oss-security - Malicious primary DNS servers can crash secondaries
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015073.html

[dns-operations] CNAME points to itself
Mailing List;Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1353563

1353563 – (CVE-2016-6170) CVE-2016-6170 bind: Improper restriction of zone size limit
Issue Tracking;Patch;Third Party Advisory
https://github.com/sischkg/xfer-limit/blob/master/README.md

xfer-limit/README.md at master · sischkg/xfer-limit · GitHub
Exploit;Patch;Third Party Advisory

CVEs referencing this url
https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html

[dns-operations] about wildcard for CNAME
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015075.html

[dns-operations] DNS activities in Japan
Mailing List;Third Party Advisory
http://www.securitytracker.com/id/1036241

BIND AXFR/IXFR Response Processing Flaw Lets Remote DNS Servers to Cause the Target DNS Service to Crash - SecurityTracker
Third Party Advisory;VDB Entry
https://kb.isc.org/article/AA-01390/169/CVE-2016-6170

Operational Notification: A party that is allowed control over zone data can overwhelm a server by transferring huge quantities of data. - Operational Notifications
Vendor Advisory
https://kb.isc.org/article/AA-01390

Operational Notification: A party that is allowed control over zone data can overwhelm a server by transferring huge quantities of data. - Operational Notifications
Vendor Advisory
http://www.securityfocus.com/bid/91611

ISC BIND CVE-2016-6170 Remote Denial of Service Vulnerability
Third Party Advisory;VDB Entry