Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2021-25219): Bind vulnerability

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Ubuntu: (Multiple Advisories) (CVE-2021-25219): Bind vulnerability

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/27/2021
Created
11/02/2021
Added
10/29/2021
Modified
03/22/2023

Description

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

Solution(s)

  • ubuntu-upgrade-bind9

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

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

;