DEBIAN-CVE-2018-13405

Dashboard / Vulnerabilities / DEBIAN-CVE-2018-13405

DEBIAN-CVE-2018-13405

Summary:

Details: 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.

References: https://security-tracker.debian.org/tracker/CVE-2018-13405