vulnerability
CentOS Linux: CVE-2021-25219: Moderate: bind security, bug fix, and enhancement update (CESA-2022:2092)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Oct 27, 2021 | May 13, 2022 | May 25, 2023 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Oct 27, 2021
Added
May 13, 2022
Modified
May 25, 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.
Solutions
centos-upgrade-bindcentos-upgrade-bind-chrootcentos-upgrade-bind-debuginfocentos-upgrade-bind-debugsourcecentos-upgrade-bind-develcentos-upgrade-bind-export-develcentos-upgrade-bind-export-libscentos-upgrade-bind-export-libs-debuginfocentos-upgrade-bind-libscentos-upgrade-bind-libs-debuginfocentos-upgrade-bind-libs-litecentos-upgrade-bind-libs-lite-debuginfocentos-upgrade-bind-licensecentos-upgrade-bind-lite-develcentos-upgrade-bind-pkcs11centos-upgrade-bind-pkcs11-debuginfocentos-upgrade-bind-pkcs11-develcentos-upgrade-bind-pkcs11-libscentos-upgrade-bind-pkcs11-libs-debuginfocentos-upgrade-bind-pkcs11-utilscentos-upgrade-bind-pkcs11-utils-debuginfocentos-upgrade-bind-sdbcentos-upgrade-bind-sdb-chrootcentos-upgrade-bind-sdb-debuginfocentos-upgrade-bind-utilscentos-upgrade-bind-utils-debuginfocentos-upgrade-python3-bind
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.