CVE-2017-14140

kernel: Missing permission check in move_pages system call

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

La llamada al sistema move_pages en mm/migrate.c en versiones anteriores a la 4.12.9 del kernel Linux no verifica correctamente el id de usuario del proceso objetivo. Esto permite que un atacante local aprenda la distribución de la memoria de un ejecutable setuid a pesar de la ASLR.

The move_pages system call in mm/migrate.c in the Linux kernel doesn't check the effective uid of the target process. This enables a local attacker to learn the memory layout of a setuid executable allowing mitigation of ASLR.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-09-05 CVE Reserved
2017-09-05 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-863: Incorrect Authorization

CAPEC

References (12)

URL	Tag	Source
http://www.securityfocus.com/bid/100876	Vdb Entry
https://source.android.com/security/bulletin/pixel/2018-01-01	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9	2018-04-12
https://github.com/torvalds/linux/commit/197e7e521384a23b9e585178f3f11c9fa08274b9	2018-04-12

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3981	2018-04-12
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9	2018-04-12
https://access.redhat.com/errata/RHSA-2018:0676	2018-04-12
https://access.redhat.com/errata/RHSA-2018:1062	2018-04-12
https://usn.ubuntu.com/3583-1	2018-04-12
https://usn.ubuntu.com/3583-2	2018-04-12
https://access.redhat.com/security/cve/CVE-2017-14140	2018-04-10
https://bugzilla.redhat.com/show_bug.cgi?id=1488329	2018-04-10

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"				<= 4.12.8 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.12.8"		-		Affected