CVE-2017-18221

MEDIUM

Linux Kernel < 4.11.4 - Denial of Service via Mlock Accounting Corruption

Title source: llm
STIX 2.1

Description

The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.

References (6)

Core 6
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3655-1/
Release Notes, Vendor Advisory x_refsource_misc
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.4
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3655-2/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103321

Scores

CVSS v3 5.5
EPSS 0.0050
EPSS Percentile 39.2%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
linux/linux_kernel < 4.11.4
Published Mar 07, 2018
Tracked Since Feb 18, 2026