{"id":"CLSA-2026-1780070780","summary":"samba: Fix of CVE-2021-43566","details":"- CVE-2021-43566: fix mkdir_internal() symlink race that allowed an SMB1\n  or NFS client to create a directory outside the exported share; pin\n  the parent via vfs_ChDir() and validate the relative path before\n  SMB_VFS_MKDIR()","modified":"2026-10-26T09:31:57.966651493Z","published":"2026-05-29T16:06:24Z","upstream":["CVE-2021-43566"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1780070780.html"}],"affected":[{"package":{"name":"ctdb","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/ctdb?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"ctdb-tests","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/ctdb-tests?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"libsmbclient","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libsmbclient?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"libsmbclient-devel","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libsmbclient-devel?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"libwbclient","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libwbclient?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"libwbclient-devel","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/libwbclient-devel?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-client","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-client?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-client-libs","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-client-libs?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-common","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-common?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-common-libs","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-common-libs?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-common-tools","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-common-tools?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-dc","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-dc?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.16-25.el7_9.tuxcare.els9"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1780070780.json"}},{"package":{"name":"samba-dc-libs","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/samba-dc-libs?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","ev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