CVE-2023-53569

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

04/10/2025

Last modified:

21/03/2026

Description

In the Linux kernel, the following vulnerability has been resolved: ext2: Check block size validity during mount Check that log of block size stored in the superblock has sensible value. Otherwise the shift computing the block size can overflow leading to undefined behavior.

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::::::::	2.6.12.1 (including)	4.14.316 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.284 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.244 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.181 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.113 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.30 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.3.4 (excluding)
cpe:2.3:o:linux:linux_kernel:2.6.12:-::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5::::::

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

CVE-2023-53569

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools