{"id":"CLSA-2026-1779534149","summary":"unbound: Fix of CVE-2026-33278","details":"- CVE-2026-33278: use-after-free in DNSSEC validator dns_msg_deepcopy_region\n  during NSEC3 sub-query suspend/resume; buggy struct-assignment overwrote\n  the destination's freshly-allocated rrsets pointer with the source's\n  pointer, leaving a dangling pointer dereferenced after the source region\n  was freed (possible remote code execution or crash)","modified":"2026-06-01T00:33:14.946853790Z","published":"2026-05-23T11:02:33Z","upstream":["CVE-2026-33278"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1779534149.html"}],"affected":[{"package":{"name":"python3-unbound","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/python3-unbound?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"}},{"package":{"name":"unbound","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"}},{"package":{"name":"unbound-devel","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound-devel?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"}},{"package":{"name":"unbound-libs","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound-libs?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"}}],"schema_version":"1.7.5"}