{"id":"CLSA-2026-1782159797","summary":"Fix CVE(s): CVE-2026-3238","details":"   * CVE-2026-3238: source4 WINS server NULL pointer dereference in\n     nbtd_winsserver_register/query/release(); craft NBT packets with\n     qdcount=0, arcount=0, or empty netbios addresses crash the nbt process\n     on servers running `wins support = yes` (typical AD DC role). Fix\n     dissolves direct variable initialization and adds NBTD_ASSERT_PACKET\n     qdcount/arcount/length validation before any packet array dereference.\n     - debian/patches/CVE-2026-3238.patch\n     - CVE-2026-3238","modified":"2026-10-26T09:32:05.280966608Z","published":"2026-06-22T20:23:32Z","upstream":["CVE-2026-3238"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1782159797.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3238"}],"affected":[{"package":{"name":"ctdb","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/ctdb?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libnss-winbind","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libnss-winbind?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libpam-winbind","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libpam-winbind?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libsmbclient","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libsmbclient?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libsmbclient-dev","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libsmbclient-dev?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libwbclient-dev","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libwbclient-dev?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"libwbclient0","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libwbclient0?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"python3-samba","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/python3-samba?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"registry-tools","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/registry-tools?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"samba","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"samba-common","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-common?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"samba-common-bin","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-common-bin?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1782159797.json"}},{"package":{"name":"samba-dev","ec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