{"id":"RLSA-2021:4153","summary":"Moderate: dnsmasq security and bug fix update","details":"The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.\n\nSecurity Fix(es):\n\n* dnsmasq: fixed outgoing port used when --server is used with an interface name (CVE-2021-3448)\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 Rocky Linux 8.5 Release Notes linked from the References section.","modified":"2026-02-05T03:15:13.056255Z","published":"2021-11-09T08:24:48Z","upstream":["CVE-2021-3448"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2021:4153"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1921153"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1927973"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1939368"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1947039"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/dnsmasq?distro=rocky-linux-8-5-legacy&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.79-19.el8"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2021:4153.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}