Security Vulnerabilities fixed in bind9.16 RHSA-2022:7643

Description

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly. Security Fix(es): bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220) bind: DoS from specifically crafted TCP packets (CVE-2022-0396) bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220) bind: DoS from specifically crafted TCP packets (CVE-2022-0396) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.7 Release Notes linked from the References section. SolutionFor details on how to apply this update, which includes the changes described in this advisory, refer to:https://access.redhat.com/articles/11258

Affected Applications

bind9.16

CVE References

CVE-2021-25220 CVE-2022-38177 CVE-2022-0396

Other References

https://access.redhat.com/errata/RHSA-2022:7643