{"id":"CVE-2016-10318","aliases":["DEBIAN-CVE-2016-10318","EUVD-2016-1503","GHSA-mcg2-4f7h-vc52","UBUNTU-CVE-2016-10318"],"status":"published","title":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the...","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02159,"percentile":0.82318,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264"],"published":"2017-04-04T16:00:00Z","modified":"2026-09-22T07:02:54Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["4.7.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["4.7.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["4.7.4-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"linux-lts-xenial","fixed_in":["4.4.0-47.68~14.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux","fixed_in":["4.4.0-47.68"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-raspi2","fixed_in":["4.4.0-1038.45"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-snapdragon","fixed_in":["4.4.0-1035.39"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.4-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"linux-lts-xenial","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-47.68~14.04.1"}]}],"versions":["4.4.0-13.29~14.04.1","4.4.0-14.30~14.04.2","4.4.0-15.31~14.04.1","4.4.0-18.34~14.04.1","4.4.0-21.37~14.04.1","4.4.0-22.39~14.04.1","4.4.0-22.40~14.04.1","4.4.0-24.43~14.04.1","4.4.0-28.47~14.04.1","4.4.0-31.50~14.04.1","4.4.0-34.53~14.04.1","4.4.0-36.55~14.04.1","4.4.0-38.57~14.04.1","4.4.0-42.62~14.04.1","4.4.0-45.66~14.04.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-47.68"}]}],"versions":["4.2.0-16.19","4.2.0-17.21","4.2.0-19.23","4.3.0-1.10","4.3.0-2.11","4.3.0-5.16","4.3.0-6.17","4.3.0-7.18","4.4.0-2.16","4.4.0-4.19","4.4.0-6.21","4.4.0-7.22","4.4.0-8.23","4.4.0-9.24","4.4.0-10.25","4.4.0-11.26","4.4.0-12.28","4.4.0-13.29","4.4.0-14.30","4.4.0-15.31","4.4.0-16.32","4.4.0-17.33","4.4.0-18.34","4.4.0-21.37","4.4.0-22.39","4.4.0-22.40","4.4.0-24.43","4.4.0-28.47","4.4.0-31.50","4.4.0-34.53","4.4.0-36.55","4.4.0-38.57","4.4.0-42.62","4.4.0-43.63","4.4.0-45.66"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-raspi2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1038.45"}]}],"versions":["4.2.0-1013.19","4.2.0-1014.21","4.3.0-1006.6","4.4.0-1003.4","4.4.0-1004.5","4.4.0-1009.10","4.4.0-1010.12","4.4.0-1010.13","4.4.0-1012.16","4.4.0-1016.22","4.4.0-1017.23","4.4.0-1019.25","4.4.0-1021.27","4.4.0-1023.29","4.4.0-1027.33","4.4.0-1029.36","4.4.0-1034.41"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-snapdragon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1035.39"}]}],"versions":["4.4.0-1012.12","4.4.0-1013.14","4.4.0-1013.15","4.4.0-1015.18","4.4.0-1019.22","4.4.0-1020.23","4.4.0-1022.25","4.4.0-1024.27","4.4.0-1026.29","4.4.0-1030.33","4.4.0-1032.36"]}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.4","tags":["x_refsource_CONFIRM","x_transferred","Release 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authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:00:00Z","modified":"2024-08-06T03:14:42.846Z","updated_at":"2026-11-02T14:33:31.450804Z"}],"euvd":[{"id":"EUVD-2016-1503","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:00:00Z","modified":"2024-08-06T03:14:42Z","updated_at":"2026-11-03T02:22:24.206227Z"}],"ghsa":[{"id":"GHSA-mcg2-4f7h-vc52","title":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the...","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2022-05-17T02:50:39Z","modified":"2023-01-27T05:05:56Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T14:42:48.225805Z"}],"nvd":[{"id":"CVE-2016-10318","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:59:00.157Z","modified":"2026-06-17T00:39:28.373Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:03:37.238712Z"}],"osv":[{"id":"CVE-2016-10318","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:59:00.157Z","modified":"2026-03-15T22:04:33.278912Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:01.531338Z"},{"id":"DEBIAN-CVE-2016-10318","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:59:00.157Z","modified":"2026-09-22T07:02:54.514110095Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:27.323751Z"},{"id":"UBUNTU-CVE-2016-10318","description":"A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.","status":"published","published":"2017-04-04T16:59:00Z","modified":"2026-04-22T10:30:26.999777Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:11.492576Z"}]}}