CVE-2016-9778

Impact:
Important
Public Date:
2017-01-11
Bugzilla:
1411387: CVE-2016-9778 bind: assertion failure while handling certain queries using the nxdomain-redirect feature

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2016-9778 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 bind Not affected
Red Hat Enterprise Linux 6 bind Not affected
Red Hat Enterprise Linux 5 bind97 Not affected
Red Hat Enterprise Linux 5 bind Not affected

Acknowledgements

Red Hat would like to thank ISC for reporting this issue.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation