CVE-2014-3122

Kernel: mm: try_to_unmap_cluster() should lock_page() before mlocking

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings.

La función try_to_unmap_cluster en mm/rmap.c en el kernel de Linux anterior a 3.14.3 no considera debidamente que páginas deben cerrarse, lo que permite a usuarios locales causar una denegación de servicio (caída de sistema) mediante la provocación de una pauta de uso de memoria que requiere la eliminación de asignaciones de tablas de páginas.

It was found that the try_to_unmap_cluster() function in the Linux kernel's Memory Managment subsystem did not properly handle page locking in certain cases, which could potentially trigger the BUG_ON() macro in the mlock_vma_page() function. A local, unprivileged user could use this flaw to crash the system.

*Credits: N/A

CVSS Scores

NISTv2 4.9

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

2014-04-29 CVE Reserved
2014-05-11 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (11)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=57e68e9cd65b4b8eb4045a1e0d0746458502554c	X_refsource_confirm
http://secunia.com/advisories/59386	Broken Link
http://secunia.com/advisories/59599	Broken Link
http://www.securityfocus.com/bid/67162	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3	2023-02-13
http://www.openwall.com/lists/oss-security/2014/05/01/7	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=1093076	2014-10-13
https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c	2023-02-13

URL	Date	SRC
http://www.debian.org/security/2014/dsa-2926	2023-02-13
http://www.ubuntu.com/usn/USN-2240-1	2023-02-13
https://access.redhat.com/security/cve/CVE-2014-3122	2014-10-13

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"				< 3.14.3 Search vendor "Linux" for product "Linux Kernel" and version " < 3.14.3"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected