Rapid7 Vulnerability & Exploit Database

ISC BIND: An assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys (CVE-2018-5745)

Back to Search

ISC BIND: An assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys (CVE-2018-5745)

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
02/27/2019
Created
03/19/2019
Added
02/27/2019
Modified
11/29/2019

Description

"managed-keys" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor's keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.

Solution(s)

  • upgrade-isc-bind-latest

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;