Skip to content
OpenAdvisories
Medium RHSA-2022:8385 1 CVE

Red Hat Security Advisory: dhcp security and enhancement update

Published Sep 16, 2024 · Updated Aug 7, 2026

Ecosystem: Red Hat

Fixed packages 10

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-client 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-client-debuginfo 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-common 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-debuginfo 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-debugsource 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-relay 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-relay-debuginfo 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-server 12:4.4.2-17.b1.el9
Red Hat · RHEL 9 enterprise_linux:9::baseos dhcp-server-debuginfo 12:4.4.2-17.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

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • article
    https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.1_release_notes/index
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2064512
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_8385.json
  • report
    https://access.redhat.com/security/cve/CVE-2021-25220
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2021-25220
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2021-25220
  • article
    https://kb.isc.org/docs/CVE-2021-25220