CVE-2016-10318

MEDIUM

Description

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=163ae1c6ad6299b19e22b4a35d5ab24a89791a98

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.4

http://www.securityfocus.com/bid/97404

https://github.com/torvalds/linux/commit/163ae1c6ad6299b19e22b4a35d5ab24a89791a98

Details

Source: MITRE

Published: 2017-04-04

Updated: 2017-04-11

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 4

Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM