CVE-2023-0386

kernel: FUSE filesystem low-privileged user privileges escalation

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on 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

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-01-18 CVE Reserved
2023-03-22 CVE Published
2023-04-20 First Exploit
2024-08-02 CVE Updated
2024-09-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-282: Improper Ownership Management

CAPEC

References (20)

URL	Tag	Source
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html	Mailing List
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html	Mailing List
https://security.netapp.com/advisory/ntap-20230420-0004	Third Party Advisory

URL	Date	SRC
https://github.com/sxlmnwb/CVE-2023-0386	2023-05-16
https://github.com/xkaneiki/CVE-2023-0386	2023-05-08
https://github.com/chenaotian/CVE-2023-0386	2023-05-06
https://github.com/Fanxiaoyao66/CVE-2023-0386	2023-06-28
https://github.com/veritas501/CVE-2023-0386	2023-04-20
https://github.com/3yujw7njai/CVE-2023-0386	2023-05-08
https://github.com/puckiestyle/CVE-2023-0386	2023-12-23
https://github.com/churamanib/CVE-2023-0386	2024-04-05
https://github.com/letsr00t/CVE-2023-0386	2024-02-29
https://github.com/EstamelGG/CVE-2023-0386-libs	2024-04-23
https://github.com/Satheesh575555/linux-4.19.72_CVE-2023-0386	2023-06-01
https://github.com/hshivhare67/kernel_v4.19.72_CVE-2023-0386	2023-05-09

URL	Date	SRC
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a	2024-06-27

URL	Date	SRC
https://www.debian.org/security/2023/dsa-5402	2024-06-27
https://access.redhat.com/security/cve/CVE-2023-0386	2023-04-25
https://bugzilla.redhat.com/show_bug.cgi?id=2159505	2023-04-25

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"				>= 5.11 < 5.15.91 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.91"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.16 < 6.1.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 6.1.9"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc5		Affected