CVE-2018-16597

kernel: overlayfs file truncation without permissions

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

Se ha descubierto un problema en el kernel de Linux en versiones anteriores a la 4.8. La comprobación de acceso incorrecta de montajes de overlayfs podría ser empleada por los atacantes locales para modificar o truncar archivos en el sistema de archivos subyacente

An issue was discovered in the Linux kernel where an incorrect access check in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-06 CVE Reserved
2018-09-21 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-862: Missing Authorization
CWE-863: Incorrect Authorization

CAPEC

References (10)

URL	Tag	Source
http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html	X_refsource_misc
http://www.securityfocus.com/bid/105394	Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/33	Mailing List
https://support.f5.com/csp/article/K22691834	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1106512	2019-10-03
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c0ca3d70e8d3cf81e2255a217f7ca402f5ed0862	2019-10-03
https://security.netapp.com/advisory/ntap-20190204-0001	2019-10-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html	2019-10-03
https://access.redhat.com/security/cve/CVE-2018-16597	2016-11-03
https://bugzilla.redhat.com/show_bug.cgi?id=1632443	2016-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.8 Search vendor "Linux" for product "Linux Kernel" and version " < 4.8"		-		Affected
Netapp Search vendor "Netapp"		Active Iq Performance Analytics Services Search vendor "Netapp" for product "Active Iq Performance Analytics Services"				-		-		Affected
Netapp Search vendor "Netapp"		Element Software Search vendor "Netapp" for product "Element Software"				-		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.3 Search vendor "Opensuse" for product "Leap" and version "42.3"		-		Affected