CVE-2020-12652

Severity Score

4.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a "double fetch" vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states "The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power."

La función __mptctl_ioctl en el archivo drivers/message/fusion/mptctl.c en el kernel de Linux versiones anteriores a 5.4.14, permite a usuarios locales mantener un bloqueo incorrecto durante la operación ioctl y desencadenar una condición de carrera, es decir, una vulnerabilidad de "double fetch", también se conoce como CID-28d76df18f0a. NOTA: el suplidor afirma "El impacto de seguridad de este bug no es tan malo como podría haber sido debido a que estas operaciones son privilegiadas y la root ya posee un enorme poder destructivo.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-05-05 CVE Reserved
2020-05-05 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	Mailing List
https://security.netapp.com/advisory/ntap-20200608-0001	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28d76df18f0ad5bcf5fa48510b225f0ed262a99b	2020-06-13
https://github.com/torvalds/linux/commit/28d76df18f0ad5bcf5fa48510b225f0ed262a99b	2020-06-13

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html	2020-06-13
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.14	2020-06-13
https://www.debian.org/security/2020/dsa-4698	2020-06-13

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"				< 5.4.14 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.14"		-		Affected