PT-2018-6743 · Linux+2 · Linux Kernel+2

Alex Chen · Published 2018-03-05 · Updated 2019-03-14 · CVE-2017-18216

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.15

Description: The issue allows local users to cause a denial of service, resulting in a NULL pointer dereference and BUG, due to the lack of a required mutex in fs/ocfs2/cluster/nodemanager.c.

Recommendations: For versions prior to 4.15, update to version 4.15 or later to resolve the issue.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2018-1557

ALT-PU-2019-1433

CVE-2017-18216

DLA-1369-1

DSA-4187-1

DSA-4188-1

USN-3776-1

USN-3776-2

USN-3798-1

USN-3798-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 42

• https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 · Patch
• https://usn.ubuntu.com/3776-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4188-1 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 · Vendor Advisory
• https://debian.org/security/2018/dsa-4187 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3798-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3776-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-6555 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-18216 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3776-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10902 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18216 · Vendor Advisory
• https://usn.ubuntu.com/3798-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-15299 · Vendor Advisory
• https://usn.ubuntu.com/3798-1 · Vendor Advisory