PT-2018-6733 · Linux+3 · Linux Kernel+3

Published 2017-12-08 · Updated 2020-11-24 · CVE-2017-18204

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 4.14.2

Description: The issue allows local users to cause a denial of service (deadlock) via DIO requests. This is due to a problem in the ocfs2 setattr function in fs/ocfs2/file.c.

Recommendations: For Linux kernel versions prior to 4.14.2, update to version 4.14.2 or later to resolve the issue. As a temporary workaround, consider restricting DIO requests to minimize the risk of exploitation.

Fix

Related Identifiers

ALT-PU-2017-2771

ALT-PU-2018-1991

CVE-2017-18204

SUSE-SU-2018:0834-1

SUSE-SU-2018:0848-1

SUSE-SU-2020:3501-1

SUSE-SU-2020:3503-1

USN-3617-1

USN-3617-2

USN-3617-3

USN-3619-1

USN-3619-2

USN-3655-1

USN-3655-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 202

• https://github.com/torvalds/linux/commit/28f5a8a7c033cbf3e32277f4cc9c6afd74f05300 · Patch
• https://ubuntu.com/security/notices/USN-3617-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-15129 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16536 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18079 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0861 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16537 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-3639 · Vendor Advisory
• https://usn.ubuntu.com/3619-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16912 · Vendor Advisory
• https://usn.ubuntu.com/3617-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11472 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000026 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18204 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17448 · Vendor Advisory