Vulnerability in Isc Bind
CVE-2016-9778
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.
EPSS: 0.068 (93.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Isc Bind — versions 9.9.8, 9.9.9, 9.11.0
- Isc Bind 9 — versions BIND 9 9.9.8-S1 -> 9.9.8-S3, 9.9.9-S1 -> 9.9.9-S6, 9.11.0-9.11.0-P1
- Netapp Data_ontap_edge
- Netapp Solidfire_element_os_management_node
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-officer@isc.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security-officer@isc.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security-officer@isc.org (x_refsource_CONFIRM, Third Party Advisory)
- security-officer@isc.org (x_refsource_CONFIRM, Vendor Advisory)
- security-officer@isc.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2016-9778?
- CVE-2016-9778 is a high-severity vulnerability in Isc Bind, classified under CWE-388. CVSS score: 7.5/10. Published 2019-01-16.
- How severe is CVE-2016-9778?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-9778 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.