CVE-2017-15951 Information

Description

The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the \negative\ state to avoid a race condition which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10 http://www.securityfocus.com/bid/101621 https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8