{"id":"RLSA-2023:7836","summary":"Moderate: avahi security update","details":"Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers.\n\nSecurity Fix(es):\n\n* avahi: Local DoS by event-busy-loop from writing long lines to /run/avahi-daemon/socket (CVE-2021-3468)\n\n* avahi: Reachable assertion in avahi_dns_packet_append_record (CVE-2023-38469)\n\n* avahi: Reachable assertion in avahi_escape_label (CVE-2023-38470)\n\n* avahi: Reachable assertion in dbus_set_host_name (CVE-2023-38471)\n\n* avahi: Reachable assertion in avahi_rdata_parse (CVE-2023-38472)\n\n* avahi: Reachable assertion in avahi_alternative_host_name (CVE-2023-38473)\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":"2026-03-11T06:27:54.010703Z","published":"2024-01-09T04:07:32.387758Z","upstream":["CVE-2021-3468","CVE-2023-38469","CVE-2023-38470","CVE-2023-38471","CVE-2023-38472","CVE-2023-38473"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2023:7836"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1939614"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2191687"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2191690"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2191691"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2191692"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2191694"}],"affected":[{"package":{"name":"avahi","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/avahi?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.7-21.el8_9.1"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2023:7836.json"}}],"schema_version":"1.7.5","credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}