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CVE-2018-13405

HIGH
7.8
CVSS Score
Published: July 6, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 01:39 AM UTC
27 products affected across 6 vendorsLinux KernelDebian LinuxFedora

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Severity
HIGH7.8
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
14.0416.0418.04
Debian Linux· Debiandrupal
95%
8.09.0
Big IP Access Policy Manager· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Advanced Firewall Manager· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Analytics· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Application Acceleration Manager· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Application Security Manager· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Domain Name System· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Edge Gateway· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement
Big IP Fraud Protection Service· F5
95%
13.0.0 ≤ v < 13.1.3.514.0.0 ≤ v < 14.1.3.115.0.0 ≤ v < 15.0.1.415.1.016.0.0
Affected range stops below 13.1.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.3.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.1.4, so it looks safe — our inference, not a vendor statement

References (28)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848c9c93c2c828ef4c3a8ca36ce46c7
x_refsource_MISCMailing ListPatchThird Party Advisory
Source: [email protected]
http://openwall.com/lists/oss-security/2018/07/13/2
VDB Entryx_refsource_BIDBroken Link
Source: [email protected]
http://www.securityfocus.com/bid/106503
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:2948
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3083
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:3096
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:0717
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:2476

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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