CVE-2017-18224

MEDIUM

Linux Kernel < 4.15 - Denial of Service via Race Condition in OCFS2 Extent Tree Access

Title source: llm
STIX 2.1

Description

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

References (4)

Core 4
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4188
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103353

Scores

CVSS v3 4.7
EPSS 0.0029
EPSS Percentile 20.1%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-362
Status published
Products (1)
linux/linux_kernel < 4.15
Published Mar 12, 2018
Tracked Since Feb 18, 2026