CVE-2018-12931

kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

ntfs_attr_find in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a stack-based out-of-bounds write and cause a denial of service (kernel oops or panic) or possibly have unspecified other impact via a crafted ntfs filesystem.

ntfs_attr_find en el controlador en el sistema de archivos ntfs.ko en el kernel de Linux 4.15.0 permite que los atacantes desencadenen una escritura fuera de límites basada en la pila de memoria y provoquen una denegación de servicio (OOPS o pánico del kernel) o, posiblemente, provoquen otro impacto no especificado mediante un sistema de archivos ntfs manipulado.

A flaw was found in ntfs_attr_find in the ntfs.ko filesystem driver in the Linux kernel. This allows attackers to trigger a stack-based out-of-bounds write and cause a denial of service or possibly have unspecified other impact via a crafted ntfs filesystem image. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-06-28 CVE Reserved
2018-06-28 CVE Published
2023-06-22 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/104588	Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763403	Issue Tracking
https://marc.info/?l=linux-ntfs-dev&m=152413769810234&w=2	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:0641	2019-03-26
https://access.redhat.com/security/cve/CVE-2018-12931	2019-03-26
https://bugzilla.redhat.com/show_bug.cgi?id=1597843	2019-03-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04.4 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04.4"		lts		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.15 Search vendor "Linux" for product "Linux Kernel" and version "4.15"		-		Affected