{"id":"CVE-2021-44142","details":"The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide \"...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.\" Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.","modified":"2026-05-18T05:53:34.907538985Z","published":"2022-02-21T15:15:07.380Z","related":["ALSA-2022:0332","SUSE-SU-2022:0251-1","SUSE-SU-2022:0252-1","SUSE-SU-2022:0271-1","SUSE-SU-2022:0283-1","SUSE-SU-2022:0284-1","SUSE-SU-2022:0287-1","SUSE-SU-2022:0323-1","SUSE-SU-2022:0361-1","openSUSE-SU-2022:0283-1","openSUSE-SU-2024:11807-1"],"database_specific":{"unresolved_ranges":[{"vendor_product":"canonical:ubuntu_linux","extracted_events":[{"last_affected":"14.04"},{"last_affected":"16.04"},{"last_affected":"18.04"},{"last_affected":"20.04"},{"last_affected":"21.10"}],"cpes":["cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"debian:debian_linux","extracted_events":[{"last_affected":"10.0"},{"last_affected":"11.0"}],"cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"fedoraproject:fedora","extracted_events":[{"last_affected":"34"},{"last_affected":"35"}],"cpes":["cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux","extracted_events":[{"last_affected":"7.0"},{"last_affected":"8.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_desktop","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_eus","extracted_events":[{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_ibm_z_systems","extracted_events":[{"last_affected":"7.0"},{"last_affected":"8.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_ibm_z_systems_eus","extracted_events":[{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_power_big_endian","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_power_little_endian","extracted_events":[{"last_affected":"7.0"},{"last_affected":"8.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_power_little_endian_eus","extracted_events":[{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_for_scientific_computing","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_resilient_storage","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_resilient_storage:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_server","extracted_events":[{"last_affected":"7.0"},{"last_affected":"8.1"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_server:8.1:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_server_aus","extracted_events":[{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_server_tus","extracted_events":[{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_server_update_services_for_sap_solutions","extracted_events":[{"last_affected":"8.1"},{"last_affected":"8.2"},{"last_affected":"8.4"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:enterprise_linux_workstation","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:gluster_storage","extracted_events":[{"last_affected":"3.5"}],"cpes":["cpe:2.3:a:redhat:gluster_storage:3.5:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"redhat:virtualization_host","extracted_events":[{"last_affected":"4.0"}],"cpes":["cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"},{"vendor_product":"synology:diskstation_manager","extracted_events":[{"introduced":"6.2"},{"fixed":"6.2.4-25556.4"}],"cpes":["cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*"],"source":"CPE_FIELD"}]},"references":[{"type":"WEB","url":"https://kb.cert.org/vuls/id/119678"},{"type":"WEB","url":"https://www.kb.cert.org/vuls/id/119678"},{"type":"WEB","url":"https://www.samba.org/samba/security/CVE-2021-44142.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202309-06"},{"type":"REPORT","url":"https://bugzilla.samba.org/show_bug.cgi?id=14914"},{"type":"ARTICLE","url":"https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"0"},{"fixed":"e0de3de2504616cffc42b66e865f31380f55305c"},{"introduced":"9b49519cae3e967af9ea48dc5fcfb6c145e31db4"},{"fixed":"4c6b1950c479c33fb44ee3d0881bb4315a68fbd0"},{"introduced":"fc8342bd26d1c55ca5780b427f675f31147b27f9"},{"fixed":"27bd8a323591486e76e916a6084c7300bf358eec"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.13.17"},{"introduced":"4.14.0"},{"fixed":"4.14.12"},{"introduced":"4.15.0"},{"fixed":"4.15.5"}],"cpe":"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"versions":["samba-4.15.4","samba-4.13.16","samba-4.14.11","samba-4.13.15","samba-4.15.3","samba-4.13.14","samba-4.14.10","samba-4.15.2","ldb-2.2.3","ldb-2.3.2","samba-4.13.13","ldb-2.2.2","samba-4.14.9","samba-4.15.1","ldb-2.4.1","ldb-2.3.1","samba-4.14.8","samba-4.13.12","samba-4.15.0","samba-4.13.11","samba-4.14.7","samba-4.13.10","samba-4.14.6","samba-4.14.5","samba-4.13.9","samba-4.14.3","samba-4.13.5","samba-4.14.0","samba-4.13.4","samba-4.13.3","samba-4.13.2","samba-4.13.0","samba-4.13.0rc6","samba-4.13.0rc5","samba-4.13.0rc4","samba-4.13.0rc3","samba-4.13.0rc2","samba-4.13.0rc1","ldb-2.2.0","ldb-2.1.1","samba-4.12.0rc1","ldb-2.1.0","tevent-0.10.2","tdb-1.4.3","talloc-2.3.1","tevent-0.10.1","tdb-1.4.2","talloc-2.3.0","samba-4.11.0rc1","ldb-2.0.5","tdb-1.4.1","ldb-1.6.3","tevent-0.10.0","talloc-2.2.0","tdb-1.4.0","ldb-1.6.2","tevent-0.9.39","talloc-2.1.16","tdb-1.3.18","ldb-1.6.1","samba-4.10.0rc1","ldb-1.5.2","tevent-0.9.38","talloc-2.1.15","tdb-1.3.17","ldb-1.5.1","ldb-1.5.0","samba-4.9.0rc1","ldb-1.4.1","talloc-2.1.14","tdb-1.3.16","tevent-0.9.37","ldb-1.4.0","talloc-2.1.13","talloc-2.1.12","ldb-1.3.2","tevent-0.9.36","samba-4.8.0rc1","ldb-1.3.1","tevent-0.9.35","talloc-2.1.11","tevent-0.9.34","ldb-1.3.0","ldb-1.2.2","tdb-1.3.15","ldb-1.2.1","tevent-0.9.33","talloc-2.1.10","samba-4.7.0rc1","ldb-1.2.0","tdb-1.3.14","tevent-0.9.32","ldb-1.1.31","ldb-1.1.30","tdb-1.3.13","talloc-2.1.9","samba-4.6.0rc1","ldb-1.1.29","tdb-1.3.12","ldb-1.1.28","tevent-0.9.31","tdb-1.3.11","tevent-0.9.30","samba-4.5.0rc1","ldb-1.1.27","tevent-0.9.29","talloc-2.1.8","tdb-1.3.10","talloc-2.1.7","tdb-1.3.9","talloc-2.1.6","tevent-0.9.28","ldb-1.1.26","tevent-0.9.27","samba-4.4.0rc1","ldb-1.1.25","ldb-1.1.23","talloc-2.1.5","tdb-1.3.8","tevent-0.9.26","ldb-1.1.22","talloc-2.1.4","samba-4.3.0rc1","ldb-1.1.21","tdb-1.3.7","talloc-2.1.3","tdb-1.3.6","tevent-0.9.25","tdb-1.3.5","talloc-2.1.2","tevent-0.9.24","tevent-0.9.23","ldb-1.1.20","ldb-1.1.19","tdb-1.3.4","tdb-1.3.3","ldb-1.1.18","tdb-1.3.2","samba-4.2.0rc1","tevent-0.9.22","tdb-1.3.1","tdb-1.3.0","talloc-2.1.1","ldb-1.1.17","tdb-1.2.13","tevent-0.9.21","tevent-0.9.20","talloc-2.1.0","tevent-0.9.19","ldb-1.1.16","tdb-1.2.12","tevent-0.9.18","ldb-1.1.15","ldb-1.1.14","tdb-1.2.11","talloc-2.0.8","samba-4.0.0rc1","ldb-1.1.13","samba-4.0.0beta8","ldb-1.1.12","ldb-1.1.11","samba-4.0.0beta7","tevent-0.9.17","samba-4.0.0beta6","ldb-1.1.10","ldb-1.1.9","samba-4.0.0beta5","samba-4.0.0beta4","ldb-1.1.8","samba-4.0.0beta3","samba-4.0.0beta2","tevent-0.9.16","samba-4.0.0beta1","samba-4.0.0alpha21","samba-4.0.0alpha20","ldb-1.1.6","samba-4.0.0alpha19","ldb-1.1.5","tdb-1.2.10","samba-4.0.0alpha18","tevent-0.9.15","ldb-1.1.4","ldb-1.1.3","talloc-2.0.7","samba-4.0.0alpha17"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