CVE-2017-18216 Information

Description

In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15 local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 http://www.securityfocus.com/bid/103278 https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html https://usn.ubuntu.com/3776-1/ https://usn.ubuntu.com/3776-2/ https://usn.ubuntu.com/3798-1/ https://usn.ubuntu.com/3798-2/ https://www.debian.org/security/2018/dsa-4187 https://www.debian.org/security/2018/dsa-4188

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5