The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.
総合評価: CVE-2018-13405 は悪用リスクが高い（67.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.02%、59 パーセンタイル） 根拠: 公開エクスプロイトが 2 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| 45033 | exploit_db | edb | 2018-07-16 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.14% | 1.02% | +0.88% |
| 2 | 2026-06-08 | 0.15% | 0.14% | -0.01% |
| 3 | 2026-05-12 | — | 0.15% | — |
EPSS の全履歴 （全 21 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-13405 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-13405 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-13405 |
suse
|
medium | CVE-2018-13405 severity moderate: SUSE including 535 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 907 product×package rows across 112 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (112 product lines)): Fixed 712, Known Affected 160, Known Not Affected 35. | https://www.suse.com/security/cve/CVE-2018-13405/ |
ubuntu
|
medium | CVE-2018-13405 medium priority: Ubuntu including 77 source packages (linux, linux-aws, …), 644 status rows across 11 suites (artful, bionic, cosmic, disco, focal, jammy, noble, oracular, trusty, upstream, xenial): DNE 413, not-affected 120, released 97, ignored 14. | https://ubuntu.com/security/CVE-2018-13405 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | <= 3.16 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| redhat | mrg_realtime | 2.0 | cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:* |
| redhat | virtualization | 4.0 | cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_aus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.5 | cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time | 7 | cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 6.6 | cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | 15.1.0 | cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | 16.0.0 | cpe:2.3:a:f5:big-ip_access_policy_manager:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_advanced_firewall_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_advanced_firewall_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_advanced_firewall_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_advanced_firewall_manager | 15.1.0 | cpe:2.3:a:f5:big-ip_advanced_firewall_manager:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_advanced_firewall_manager | 16.0.0 | cpe:2.3:a:f5:big-ip_advanced_firewall_manager:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_analytics | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
| f5 | big-ip_analytics | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
| f5 | big-ip_analytics | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
| f5 | big-ip_analytics | 15.1.0 | cpe:2.3:a:f5:big-ip_analytics:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_analytics | 16.0.0 | cpe:2.3:a:f5:big-ip_analytics:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_application_acceleration_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_acceleration_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_acceleration_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_acceleration_manager | 15.1.0 | cpe:2.3:a:f5:big-ip_application_acceleration_manager:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_application_acceleration_manager | 16.0.0 | cpe:2.3:a:f5:big-ip_application_acceleration_manager:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_application_security_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_security_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_security_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_application_security_manager | 15.1.0 | cpe:2.3:a:f5:big-ip_application_security_manager:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_application_security_manager | 16.0.0 | cpe:2.3:a:f5:big-ip_application_security_manager:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_domain_name_system | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
| f5 | big-ip_domain_name_system | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
| f5 | big-ip_domain_name_system | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
| f5 | big-ip_domain_name_system | 15.1.0 | cpe:2.3:a:f5:big-ip_domain_name_system:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_domain_name_system | 16.0.0 | cpe:2.3:a:f5:big-ip_domain_name_system:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_edge_gateway | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
| f5 | big-ip_edge_gateway | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
| f5 | big-ip_edge_gateway | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
| f5 | big-ip_edge_gateway | 15.1.0 | cpe:2.3:a:f5:big-ip_edge_gateway:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_edge_gateway | 16.0.0 | cpe:2.3:a:f5:big-ip_edge_gateway:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_fraud_protection_service | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
| f5 | big-ip_fraud_protection_service | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
| f5 | big-ip_fraud_protection_service | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
| f5 | big-ip_fraud_protection_service | 15.1.0 | cpe:2.3:a:f5:big-ip_fraud_protection_service:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_fraud_protection_service | 16.0.0 | cpe:2.3:a:f5:big-ip_fraud_protection_service:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_global_traffic_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_global_traffic_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_global_traffic_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_global_traffic_manager | 15.1.0 | cpe:2.3:a:f5:big-ip_global_traffic_manager:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_global_traffic_manager | 16.0.0 | cpe:2.3:a:f5:big-ip_global_traffic_manager:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_link_controller | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
| f5 | big-ip_link_controller | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
| f5 | big-ip_link_controller | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
| f5 | big-ip_link_controller | 15.1.0 | cpe:2.3:a:f5:big-ip_link_controller:15.1.0:*:*:*:*:*:*:* |
| f5 | big-ip_link_controller | 16.0.0 | cpe:2.3:a:f5:big-ip_link_controller:16.0.0:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 13.0.0, < 13.1.3.5 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 14.0.0, < 14.1.3.1 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_local_traffic_manager | >= 15.0.0, < 15.0.1.4 | cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |