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Linux Kernel における認可・権限・アクセス制御に関する脆弱性
Title Linux Kernel における認可・権限・アクセス制御に関する脆弱性
Summary

Linux Kernel には、認可・権限・アクセス制御に関する脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date July 3, 2018, midnight
Registration Date Sept. 12, 2018, 12:29 p.m.
Last Update Sept. 12, 2018, 12:29 p.m.
CVSS3.0 : 重要
Score 7.8
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS2.0 : 警告
Score 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Affected System
Debian
Debian GNU/Linux 
Canonical
Ubuntu 
Linux
Linux Kernel 4.17.4 まで
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2018年09月12日]
  掲載		 Sept. 12, 2018, 12:29 p.m.
NVD Vulnerability Information
CVE-2018-13405
Summary

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.

Publication Date July 6, 2018, 11:29 p.m.
Registration Date March 1, 2021, 6:53 p.m.
Last Update Nov. 21, 2024, 12:47 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.16
Configuration2 or higher or less more than less than
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Configuration5 or higher or less more than less than
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:a:f5:big-ip_application_acceleration_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 15.0.0 15.0.1.4
cpe:2.3:a:f5:big-ip_access_policy_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_webaccelerator:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_edge_gateway:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 14.0.0 14.1.3.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 13.0.0 13.1.3.5
Related information, measures and tools
Common Vulnerabilities List