What is CVE-2023-1252?

CVE-2023-1252 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-03-23.

How severe is CVE-2023-1252?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Linux Kernel

CVE-2023-1252

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.

Vulnerability class: Use-After-Free

EPSS: 0.002 (12.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux Linux_kernel
N/a Kernel — versions Linux kernel 5.16-rc1

Weakness classification (CWE)

CWE-416 — Use After Free

References

secalert@redhat.com
secalert@redhat.com (Third Party Advisory)

Frequently asked questions

What is CVE-2023-1252?: CVE-2023-1252 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-03-23.
How severe is CVE-2023-1252?: High severity. CVSS v3 base score is 7.8 out of 10.