VULNERABILITY INTELLIGENCE

CVE-2023-1252

CVSS score7.8 HIGH
EPSS probability0.22%
CISA KEVNot currently listed
Published2023-03-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-416
  • nvd@nist.gov: CWE-416

Primary references