// For flags

CVE-2019-6468

BIND Supported Preview Edition can exit with an assertion failure if nxdomain-redirect is used

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.

En BIND Supported Preview Edition, puede presentarse un error en la funcionalidad nxdomain-redirect en las versiones que admiten las funcionalidades EDNS Client Subnet (ECS). En aquellas versiones que tienen soporte ECS, es probable que habilitar nxdomain-redirect conlleve a la salida de BIND debido a un error de aserción. Versiones afectadas: BIND Supported Preview Edition 9.10.5-S1 hasta 9.11.5-S5. Las versiones de ONLY BIND Supported Preview Edition están afectadas.

*Credits: ISC would like to thank Quad9 for reporting this issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-01-16 CVE Reserved
  • 2019-10-09 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-617: Reachable Assertion
CAPEC
References (2)
URL Tag Source
https://kb.isc.org/docs/cve-2019-6468 Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_20 X_refsource_confirm
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Isc
Search vendor "Isc"
 Bind
Search vendor "Isc" for product "Bind"
 9.10.5
Search vendor "Isc" for product "Bind" and version "9.10.5"
s1, supported_preview
Affected
Isc
Search vendor "Isc"
 Bind
Search vendor "Isc" for product "Bind"
 9.11.5
Search vendor "Isc" for product "Bind" and version "9.11.5"
s5, supported_preview
Affected