A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not.
Find out more about CVE-2018-13405 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS3 Base Score | 4.4 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity Impact | Low |
Availability Impact | None |
Platform | Errata | Release Date |
---|---|---|
Red Hat Enterprise Linux 7 (kernel-alt) | RHSA-2018:2948 | 2018-10-30 |
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) | RHSA-2018:3096 | 2018-10-30 |
Red Hat Enterprise Linux 7 (kernel) | RHSA-2018:3083 | 2018-10-30 |
Platform | Package | State |
---|---|---|
Red Hat Enterprise MRG 2 | realtime-kernel | Affected |
Red Hat Enterprise Linux 6 | kernel | Affected |
Red Hat Enterprise Linux 5 | kernel | Will not fix |