{"id":"ALSA-2022:8385","summary":"Moderate: dhcp security and enhancement update","details":"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.\n\nSecurity Fix(es):\n\n* bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","modified":"2026-02-04T04:33:59.549897Z","published":"2022-11-15T00:00:00Z","related":["CVE-2021-25220"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2022:8385"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2021-25220"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2064512"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2022-8385.html"}],"affected":[{"package":{"name":"dhcp-client","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/dhcp-client"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12:4.4.2-17.b1.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2022:8385.json"}},{"package":{"name":"dhcp-common","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/dhcp-common"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12:4.4.2-17.b1.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2022:8385.json"}},{"package":{"name":"dhcp-relay","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/dhcp-relay"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12:4.4.2-17.b1.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2022:8385.json"}},{"package":{"name":"dhcp-server","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/dhcp-server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12:4.4.2-17.b1.el9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2022:8385.json"}}],"schema_version":"1.7.3"}