CVE-2019-6467 : A programming error in the nxdomain-redirect feature can cause an assertion fail

A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.

Published 2019-10-09 16:15:17

Updated 2019-12-18 18:15:21

Source Internet Systems Consortium (ISC)

View at NVD, CVE.org

Products affected by CVE-2019-6467

ISC » Bind
Versions from including (>=) 9.12.0 and up to, including, (<=) 9.12.4
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Matching versions
ISC » Bind
Versions from including (>=) 9.13.0 and up to, including, (<=) 9.13.7
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Matching versions
ISC » Bind » Version: 9.14.0
cpe:2.3:a:isc:bind:9.14.0:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2019-6467

Top countries where our scanners detected CVE-2019-6467

Top open port discovered on systems with this issue 53

IPs affected by CVE-2019-6467 1,456

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2019-6467!

^*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-2019-6467

EPSS FAQ

19.10%

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

~ 95 %

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

CVSS scores for CVE-2019-6467

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	2.2	3.6	Internet Systems Consortium (ISC)
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2019-6467

CWE-617 Reachable Assertion

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-6467

https://www.synology.com/security/advisory/Synology_SA_19_20

Synology Inc.

CVEs referencing this url
https://kb.isc.org/docs/cve-2019-6467

CVE-2019-6467: An error in the nxdomain redirect feature can cause BIND to exit with an INSIST assertion failure in query.c - Security Advisories
Third Party Advisory