PT-2018-6751 · Linux+2 · Linux Kernel+2

Alex Chen · Published 2018-03-12 · Updated 2019-03-14 · CVE-2017-18224

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/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 is related to a race condition in the extent tree during read operations in DIRECT mode. This occurs because a semaphore is not used in fs/ocfs2/aops.c, allowing local users to cause a denial of service by modifying a certain e cpos field.

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

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2018-1557

ALT-PU-2019-1433

CVE-2017-18224

DSA-4188-1

OPENSUSE-SU-2018_3658-1

SUSE-SU-2018:3589-1

SUSE-SU-2018:3593-1

SUSE-SU-2018:3934-1

SUSE-SU-2018:3961-1

SUSE-SU-2018:4069-1

SUSE-SU-2018:4072-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 468

• https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-18224 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3934-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18224 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:3589-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:4069-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-18224 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-18224 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18224 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:4072-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18224 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-18224 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:3593-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4188-1 · Vendor Advisory