CVE Vulnerabilities

CVE-2021-25219

Published: Oct 27, 2021 | Modified: Nov 07, 2023
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM

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.

Affected Software

Name Vendor Start Version End Version
Bind Isc 9.3.0 (including) 9.11.36 (excluding)
Bind Isc 9.12.0 (including) 9.16.22 (excluding)
Bind Isc 9.17.0 (including) 9.17.19 (excluding)
Bind Isc 9.9.3-s1 (including) 9.9.3-s1 (including)
Bind Isc 9.9.12-s1 (including) 9.9.12-s1 (including)
Bind Isc 9.9.13-s1 (including) 9.9.13-s1 (including)
Bind Isc 9.10.5-s1 (including) 9.10.5-s1 (including)
Bind Isc 9.10.7-s1 (including) 9.10.7-s1 (including)
Bind Isc 9.11.3-s1 (including) 9.11.3-s1 (including)
Bind Isc 9.11.5-s3 (including) 9.11.5-s3 (including)
Bind Isc 9.11.5-s5 (including) 9.11.5-s5 (including)
Bind Isc 9.11.5-s6 (including) 9.11.5-s6 (including)
Bind Isc 9.11.6-s1 (including) 9.11.6-s1 (including)
Bind Isc 9.11.7-s1 (including) 9.11.7-s1 (including)
Bind Isc 9.11.8-s1 (including) 9.11.8-s1 (including)
Bind Isc 9.11.12-s1 (including) 9.11.12-s1 (including)
Bind Isc 9.11.21-s1 (including) 9.11.21-s1 (including)
Bind Isc 9.11.27-s1 (including) 9.11.27-s1 (including)
Bind Isc 9.11.29-s1 (including) 9.11.29-s1 (including)
Bind Isc 9.11.35-s1 (including) 9.11.35-s1 (including)
Bind Isc 9.16.8-s1 (including) 9.16.8-s1 (including)
Bind Isc 9.16.11-s1 (including) 9.16.11-s1 (including)
Bind Isc 9.16.13-s1 (including) 9.16.13-s1 (including)
Bind Isc 9.16.21-s1 (including) 9.16.21-s1 (including)
Red Hat Enterprise Linux 8 RedHat bind-32:9.11.36-3.el8 *
Red Hat Enterprise Linux 8 RedHat bind-32:9.11.36-3.el8 *
Bind9 Ubuntu bionic *
Bind9 Ubuntu devel *
Bind9 Ubuntu esm-infra/xenial *
Bind9 Ubuntu focal *
Bind9 Ubuntu hirsute *
Bind9 Ubuntu impish *
Bind9 Ubuntu jammy *
Bind9 Ubuntu trusty/esm *

References