CVE-2016-9778

Name: CVE-2016-9778
Creator: NVD / NIST
Published: 2019-01-16T20:29:00.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.79%

Last modified Jun 17, 2026

CVE-2016-9778 is a vulnerability of currently unknown severity. An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. EPSS estimates a 6.79% chance of exploitation in the next 30 days.

Description

An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. Please note: This vulnerability affects the "nxdomain-redirect" feature, which is one of two methods of handling NXDOMAIN redirection, and is only available in certain versions of BIND. Redirection using zones of type "redirect" is not affected by this vulnerability. Affects BIND 9.9.8-S1 -> 9.9.8-S3, 9.9.9-S1 -> 9.9.9-S6, 9.11.0-9.11.0-P1.

Metrics

EPSS Probability

6.79%

93.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-388

Affected Software

Vendor	Product	Versions	Update
Isc	Bind	9.9.8	S1
Isc	Bind	9.9.9	S1
Isc	Bind	9.11.0	—
Netapp	Data Ontap Edge	All versions	—
Netapp	Solidfire Element Os Management Node	All versions	—

References

http://www.securityfocus.com/bid/95388Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037582Third Party Advisory, VDB Entry
https://kb.isc.org/article/AA-01442/Vendor Advisory
https://security.gentoo.org/glsa/201708-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory
http://www.securityfocus.com/bid/95388Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037582Third Party Advisory, VDB Entry
https://kb.isc.org/article/AA-01442/Vendor Advisory
https://security.gentoo.org/glsa/201708-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory

Timeline

Published: Jan 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9778?

How severe is CVE-2016-9778?

Severity scoring for CVE-2016-9778 is pending analysis. The EPSS model estimates a 6.79% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9778?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9778?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST