← Back

CVE-2018-18397

nvd nist
Published: Dec 12, 2018Modified: Nov 21, 2024

JSON object

Loading...
5.5
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Exploitability: 1.8 / Impact: 3.6
Source: NVD

Description

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

Affected (17)

Linux
1 product
Linux Kernel
Redhat
8 products
Enterprise Linux Desktop
Enterprise Linux Server
Enterprise Linux Server Aus
Enterprise Linux Server Eus
Enterprise Linux Server Tus
Enterprise Linux Workstation
Openshift Container Platform
Virtualization Host
Canonical
1 product
Ubuntu Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Linux Kernel
Before 4.19.7
Configuration B
12 vulnerable
Vulnerable SoftwareAffected Versions
Enterprise Linux Desktop
Version 7.0
Enterprise Linux Server
Version 7.0
Redhat
Enterprise Linux Server Aus
Version 7.4
Enterprise Linux Server Aus
Version 7.6
Redhat
Enterprise Linux Server Eus
Version 7.4
Enterprise Linux Server Eus
Version 7.5
Enterprise Linux Server Eus
Version 7.6
Redhat
Enterprise Linux Server Tus
Version 7.4
Enterprise Linux Server Tus
Version 7.6
Enterprise Linux Workstation
Version 7.0
Openshift Container Platform
Version 3.11
Virtualization Host
Version 4.0
Configuration C
4 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 18.04
Ubuntu Linux
Version 18.10

Related CWEs

CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (28)

Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingThird Party Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.