CVE-2014-3631

Linux Kernel 3.16.3 - Associative Array Garbage Collection Crash (PoC)

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The assoc_array_gc function in the associative-array implementation in lib/assoc_array.c in the Linux kernel before 3.16.3 does not properly implement garbage collection, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via multiple "keyctl newring" operations followed by a "keyctl timeout" operation.

La función assoc_array_gc en la implementación associative-array en lib/assoc_array.c en el kernel de Linux anterior a 3.16.3 no implementa debidamente la recolección de basura, lo que permite a usuarios locales causar una denegación de servicio (referencia a puntero nulo y caída del sistema) o posiblemente tener otro impacto no especificado a través de múltiples operaciones 'keyctl newring' seguidas de una operación 'keyctl timeout'.

A flaw was found in the way the Linux kernel's keys subsystem handled the termination condition in the associative array garbage collection functionality. A local, unprivileged user could use this flaw to crash the system.

*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

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

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

2014-05-14 CVE Reserved
2014-09-28 CVE Published
2015-03-04 First Exploit
2024-08-06 CVE Updated
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (11)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=95389b08d93d5c06ec63ab49bd732b0069b7c35e	Broken Link
http://osvdb.org/show/osvdb/111298	Broken Link
http://www.securityfocus.com/bid/70095	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/36268	2015-03-04
http://www.exploit-db.com/exploits/36268	2024-08-06
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3	2024-08-06
https://github.com/torvalds/linux/commit/95389b08d93d5c06ec63ab49bd732b0069b7c35e	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://www.ubuntu.com/usn/USN-2378-1	2024-02-02
http://www.ubuntu.com/usn/USN-2379-1	2024-02-02
https://bugzilla.redhat.com/show_bug.cgi?id=1140325	2014-12-09
https://access.redhat.com/security/cve/CVE-2014-3631	2014-12-09

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"				>= 3.13 < 3.14.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.14.19"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.15 < 3.16.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 3.16.3"		-		Affected