{"id":"RLSA-2021:1989","summary":"Important: bind security update","details":"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.\n\nSecurity Fix(es):\n\n* bind: An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself (CVE-2021-25215)\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.","modified":"2026-03-11T05:59:08.203620Z","published":"2021-05-18T17:09:01Z","upstream":["CVE-2021-25215"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2021:1989"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1953857"}],"affected":[{"package":{"name":"bind","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/bind?distro=rocky-linux-8-4-legacy&epoch=2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:9.11.26-4.el8_4"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2021:1989.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}