CVE-2016-9191

Kernel Live Patch Security Notice LSN-0021-1

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The cgroup offline implementation in the Linux kernel through 4.8.11 mishandles certain drain operations, which allows local users to cause a denial of service (system hang) by leveraging access to a container environment for executing a crafted application, as demonstrated by trinity.

La implementación offline cgroup en el kernel Linux hasta la versión 4.8.11 maneja incorrectamente ciertas operaciones drain, lo que permite a usuarios locales provocar una denegación de servicio (colgado de sistema) aprovechando el acceso al contenedor de ambiente para ejecutar una aplicación manipulada, como es demostrado por trinity.

USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from Ubuntu 16.10. Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

*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

2016-11-05 CVE Reserved
2016-11-28 CVE Published
2024-08-06 CVE Updated
2025-03-18 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-399: Resource Management Errors

CAPEC

References (7)

URL	Tag	Source
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93362fa47fe98b62e4a34ab408c4a418432e7939	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2016/11/05/4	Mailing List
http://www.securityfocus.com/bid/94129	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1392439	Issue Tracking
https://github.com/torvalds/linux/commit/93362fa47fe98b62e4a34ab408c4a418432e7939	X_refsource_confirm
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03802en_us	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3791	2018-05-10

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"				<= 4.8.11 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.8.11"		-		Affected