{"schema_version":"1.7.2","id":"OESA-2026-1450","modified":"2026-02-28T12:44:36Z","published":"2026-02-28T12:44:36Z","upstream":["CVE-2026-24401"],"summary":"avahi security update","details":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below, avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record, where the alias and canonical name point to the same domain (e.g., "h.local" as a CNAME for "h.local"). This causes unbounded recursion in the lookup_handle_cname function, leading to stack exhaustion. The vulnerability affects record browsers where AVAHI_LOOKUP_USE_MULTICAST is set explicitly, which includes record browsers created by resolvers used by nss-mdns. This issue is patched in commit 78eab31128479f06e30beb8c1cbf99dd921e2524.(CVE-2026-24401)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"avahi","purl":"pkg:rpm/openEuler/avahi&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8-26.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["avahi-0.8-26.oe2203sp4.aarch64.rpm","avahi-autoipd-0.8-26.oe2203sp4.aarch64.rpm","avahi-compat-howl-0.8-26.oe2203sp4.aarch64.rpm","avahi-compat-howl-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-compat-libdns_sd-0.8-26.oe2203sp4.aarch64.rpm","avahi-compat-libdns_sd-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-debuginfo-0.8-26.oe2203sp4.aarch64.rpm","avahi-debugsource-0.8-26.oe2203sp4.aarch64.rpm","avahi-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-dnsconfd-0.8-26.oe2203sp4.aarch64.rpm","avahi-glib-0.8-26.oe2203sp4.aarch64.rpm","avahi-glib-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-gobject-0.8-26.oe2203sp4.aarch64.rpm","avahi-gobject-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-libs-0.8-26.oe2203sp4.aarch64.rpm","avahi-tools-0.8-26.oe2203sp4.aarch64.rpm","avahi-ui-0.8-26.oe2203sp4.aarch64.rpm","avahi-ui-devel-0.8-26.oe2203sp4.aarch64.rpm","avahi-ui-gtk3-0.8-26.oe2203sp4.aarch64.rpm","avahi-ui-tools-0.8-26.oe2203sp4.aarch64.rpm"],"noarch":["avahi-help-0.8-26.oe2203sp4.noarch.rpm"],"src":["avahi-0.8-26.oe2203sp4.src.rpm"],"x86_64":["avahi-0.8-26.oe2203sp4.x86_64.rpm","avahi-autoipd-0.8-26.oe2203sp4.x86_64.rpm","avahi-compat-howl-0.8-26.oe2203sp4.x86_64.rpm","avahi-compat-howl-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-compat-libdns_sd-0.8-26.oe2203sp4.x86_64.rpm","avahi-compat-libdns_sd-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-debuginfo-0.8-26.oe2203sp4.x86_64.rpm","avahi-debugsource-0.8-26.oe2203sp4.x86_64.rpm","avahi-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-dnsconfd-0.8-26.oe2203sp4.x86_64.rpm","avahi-glib-0.8-26.oe2203sp4.x86_64.rpm","avahi-glib-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-gobject-0.8-26.oe2203sp4.x86_64.rpm","avahi-gobject-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-libs-0.8-26.oe2203sp4.x86_64.rpm","avahi-tools-0.8-26.oe2203sp4.x86_64.rpm","avahi-ui-0.8-26.oe2203sp4.x86_64.rpm","avahi-ui-devel-0.8-26.oe2203sp4.x86_64.rpm","avahi-ui-gtk3-0.8-26.oe2203sp4.x86_64.rpm","avahi-ui-tools-0.8-26.oe2203sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS","name":"avahi","purl":"pkg:rpm/openEuler/avahi&distro=openEuler-24.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8-26.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["avahi-0.8-26.oe2403.aarch64.rpm","avahi-autoipd-0.8-26.oe2403.aarch64.rpm","avahi-compat-howl-0.8-26.oe2403.aarch64.rpm","avahi-compat-howl-devel-0.8-26.oe2403.aarch64.rpm","avahi-compat-libdns_sd-0.8-26.oe2403.aarch64.rpm","avahi-compat-libdns_sd-devel-0.8-26.oe2403.aarch64.rpm","avahi-debuginfo-0.8-26.oe2403.aarch64.rpm","avahi-debugsource-0.8-26.oe2403.aarch64.rpm","avahi-devel-0.8-26.oe2403.aarch64.rpm","avahi-dnsconfd-0.8-26.oe2403.aarch64.rpm","avahi-glib-0.8-26.oe2403.aarch64.rpm","avahi-glib-devel-0.8-26.oe2403.aarch64.rpm","avahi-gobject-0.8-26.oe2403.aarch64.rpm","avahi-gobject-devel-0.8-26.oe2403.aarch64.rpm","avahi-libs-0.8-26.oe2403.aarch64.rpm","avahi-tools-0.8-26.oe2403.aarch64.rpm","avahi-ui-0.8-26.oe2403.aarch64.rpm","avahi-ui-devel-0.8-26.oe2403.aarch64.rpm","avahi-ui-gtk3-0.8-26.oe2403.aarch64.rpm","avahi-ui-tools-0.8-26.oe2403.aarch64.rpm","avahi-0.8-26.oe2403sp1.aarch64.rpm","avahi-autoipd-0.8-26.oe2403sp1.aarch64.rpm","avahi-compat-howl-0.8-26.oe2403sp1.aarch64.rpm","avahi-compat-howl-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-compat-libdns_sd-0.8-26.oe2403sp1.aarch64.rpm","avahi-compat-libdns_sd-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-debuginfo-0.8-26.oe2403sp1.aarch64.rpm","avahi-debugsource-0.8-26.oe2403sp1.aarch64.rpm","avahi-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-dnsconfd-0.8-26.oe2403sp1.aarch64.rpm","avahi-glib-0.8-26.oe2403sp1.aarch64.rpm","avahi-glib-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-gobject-0.8-26.oe2403sp1.aarch64.rpm","avahi-gobject-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-libs-0.8-26.oe2403sp1.aarch64.rpm","avahi-tools-0.8-26.oe2403sp1.aarch64.rpm","avahi-ui-0.8-26.oe2403sp1.aarch64.rpm","avahi-ui-devel-0.8-26.oe2403sp1.aarch64.rpm","avahi-ui-gtk3-0.8-26.oe2403sp1.aarch64.rpm","avahi-ui-tools-0.8-26.oe2403sp1.aarch64.rpm","avahi-0.8-26.oe2403sp2.aarch64.rpm","avahi-autoipd-0.8-26.oe2403sp2.aarch64.rpm","avahi-compat-howl-0.8-26.oe2403sp2.aarch64.rpm","avahi-compat-howl-devel-0.8-26.oe2403sp2.aarch64.rpm","avahi-compat-libdns_sd-0.8-26.oe2403sp2.aarch64.rpm","avahi-compat-libdns_sd-devel-0.8-26.oe2403sp2.aarch64.rpm","avahi-debuginfo-0.8-26.oe2403sp2.aarch64.rpm","avahi-debugsource-0.8-26.oe2403sp2.aarch64.rpm","avahi-devel-0.8-26.oe2403sp2.aarch64.rpm","avahi-dnsconfd-0.8-26.oe2403sp2.aarch64.rpm","avahi-glib-0.8-26.oe2403sp2.aarch64.rpm","avahi-glib-devel-0.8-26.oe2403sp2.aarch64.rpm","avahi-gobject-0.8-26.oe2403sp2.aarch64.rpm","avahi-gobject-devel-0.8-26.oe2403sp2.aarch64.rpm"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