CVE-2015-8953

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

fs/overlayfs/copy_up.c en el kernel de Linux en versiones anteriores a 4.2.6 utiliza una ruta de código de limpieza incorrecta, lo que permite a usuarios locales provocar una denegación de servicio (fuga de referencia dentry) a través de operaciones de sistema de archivos en un archivo grande en una capa overlayfs inferior.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-08-25 CVE Reserved
2016-10-16 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/92611	Vdb Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1367814	Issue Tracking

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5	2024-08-06
http://www.openwall.com/lists/oss-security/2016/08/23/9	2024-08-06

URL	Date	SRC
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5	2016-11-28

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6	2016-11-28

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"				<= 4.2.5 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.2.5"		-		Affected