CVE-2018-13405
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJul 6, 2018
First seenJul 6, 2018
How to fix
Update
- f5 big-ip_access_policy_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_advanced_firewall_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_analytics13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_application_acceleration_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_application_security_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_domain_name_system13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_edge_gateway13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_fraud_protection_service13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_global_traffic_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_link_controller13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_local_traffic_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
- f5 big-ip_policy_enforcement_manager13.1.3.5, 14.1.3.1, 15.0.1.4 or later
Vendor advisories
- usn.ubuntu.com/3752-2/
- access.redhat.com/errata/RHSA-2018:3083
- usn.ubuntu.com/3752-3/
- usn.ubuntu.com/3753-2/
- usn.ubuntu.com/3754-1/
- access.redhat.com/errata/RHSA-2018:2948
- debian.org/security/2018/dsa-4266
- usn.ubuntu.com/3752-1/
- access.redhat.com/errata/RHSA-2018:3096
- usn.ubuntu.com/3753-1/
- access.redhat.com/errata/RHSA-2019:0717
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 3.16 | — |
| debian debian_linux | 8.0, 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04 | — |
| fedoraproject fedora | 34, 35 | — |
| redhat mrg_realtime | 2.0 | — |
| redhat virtualization | 4.0 | — |
| redhat enterprise_linux_aus | 7.4 | — |
| redhat enterprise_linux_desktop | 6.0, 7.0 | — |
| redhat enterprise_linux_eus | 7.4, 7.5 | — |
| redhat enterprise_linux_for_real_time | 7 | — |
| redhat enterprise_linux_server | 6.0, 7.0 | — |
| redhat enterprise_linux_server_aus | 6.6, 7.2, 7.3 | — |
| redhat enterprise_linux_server_tus | 7.2, 7.3, 7.4 | — |
| redhat enterprise_linux_workstation | 6.0, 7.0 | — |
| f5 big-ip_access_policy_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_advanced_firewall_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_analytics | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_application_acceleration_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_application_security_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_domain_name_system | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_edge_gateway | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_fraud_protection_service | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_global_traffic_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_link_controller | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_local_traffic_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_policy_enforcement_manager | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
| f5 big-ip_webaccelerator | 13.0.0 ≤ v < 13.1.3.5, 14.0.0 ≤ v < 14.1.3.1, 15.0.0 ≤ v < 15.0.1.4, 15.1.0, 16.0.0 | 13.1.3.5, 14.1.3.1, 15.0.1.4 |
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