Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2023-53662

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/10/2025
Last modified:
06/02/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup}<br /> <br /> If the filename casefolding fails, we&amp;#39;ll be leaking memory from the<br /> fscrypt_name struct, namely from the &amp;#39;crypto_buf.name&amp;#39; member.<br /> <br /> Make sure we free it in the error path on both ext4_fname_setup_filename()<br /> and ext4_fname_prepare_lookup() functions.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.13 (including) 6.1.54 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.5.4 (excluding)

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


References to Advisories, Solutions, and Tools