CVE-2023-1252

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

23/03/2023

Last modified:

23/04/2025

Description

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.6 (including)	5.10.80 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.14.19 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	5.15.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-1252

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools