{"id":"CLSA-2026-1777321102","summary":"Fix CVE(s): CVE-2022-26923, CVE-2022-32743","details":"   * SECURITY UPDATE: Samba AD DC did not enforce the Validated-DNS-Host-Name\n     write right, allowing an unprivileged authenticated user with machine\n     account write access (e.g. SeMachineAccountPrivilege) to set the\n     dNSHostName attribute to an arbitrary value, bypassing the MS-ADTS\n     requirement that it match \u003csAMAccountName-sans-$\u003e.\u003cdnsDomainName\u003e.\n     This primitive is commonly chained with CVE-2022-26923 (Certifried) via\n     AD CS to forge a machine certificate and escalate to Domain Admin.\n     - debian/patches/CVE-2022-32743.patch\n     - CVE-2022-32743","modified":"2026-06-04T09:46:51.272980853Z","published":"2026-04-27T20:18:28Z","upstream":["CVE-2022-26923","CVE-2022-32743"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1777321102.html"}],"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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.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.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"samba-dev","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-dev?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"samba-dsdb-modules","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-dsdb-modules?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"samba-libs","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-libs?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"samba-testsuite","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-testsuite?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"samba-vfs-modules","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/samba-vfs-modules?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"smbclient","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/smbclient?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}},{"package":{"name":"winbind","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/winbind?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.8+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777321102.json"}}],"schema_version":"1.7.5"}