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Medium RLSA-2022:8385 1 CVE

Moderate: dhcp security and enhancement update

Published Nov 15, 2022 · Updated Feb 4, 2026

Ecosystem: Rocky Linux

Summary

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es):

* bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)

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 Rocky Linux 9.1 Release Notes linked from the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 9 dhcp 2:4.4.2-17.b1.el9

Vulnerabilities 1

  • Medium 6.8
    CVE-2021-25220

    DNS forwarders - cache poisoning vulnerability

    BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to…

    ISC BIND bind9 bind9 Debian Ubuntu Azure Linux Alpine

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2064512