CVE-2016-10200

kernel: l2tp: Race condition in the L2TPv3 IP encapsulation feature

Severity Score

7.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel before 4.8.14 allows local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c.

Condición de carrera en la característica L2TPv3 IP Encapsulation en el kernel de Linux en versiones anteriores a 4.8.14 permite a usuarios locales obtener privilegios o provocar una denegación de servicio (uso después de liberación) realizando múltiples llamadas al sistema enlazadas sin comprobar adecuadamente si un socket tiene el estatus SOCK_ZAPPED, relacionado con net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c.

A use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-02-04 CVE Reserved
2017-03-07 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416: Use After Free

CAPEC

References (13)

URL	Tag	Source
http://source.android.com/security/bulletin/2017-03-01.html	Third Party Advisory
http://www.securityfocus.com/bid/101783	Third Party Advisory
http://www.securitytracker.com/id/1037965	Third Party Advisory
http://www.securitytracker.com/id/1037968	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=32c231164b762dddefa13af5a0101032c70b50ef	2023-06-07
https://github.com/torvalds/linux/commit/32c231164b762dddefa13af5a0101032c70b50ef	2023-06-07

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14	2023-06-07
https://access.redhat.com/errata/RHSA-2017:1842	2023-06-07
https://access.redhat.com/errata/RHSA-2017:2077	2023-06-07
https://access.redhat.com/errata/RHSA-2017:2437	2023-06-07
https://access.redhat.com/errata/RHSA-2017:2444	2023-06-07
https://access.redhat.com/security/cve/CVE-2016-10200	2017-08-08
https://bugzilla.redhat.com/show_bug.cgi?id=1430347	2017-08-08

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"				>= 3.0.34 < 3.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0.34 < 3.2"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.2.20 < 3.2.88 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2.20 < 3.2.88"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.4.2 < 3.12.69 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.4.2 < 3.12.69"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.13 < 3.16.40 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.16.40"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.17 < 3.18.52 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.52"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.19 < 4.4.38 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.4.38"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.5 < 4.8.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.8.14"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"		-		Affected