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-2023-53473

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
01/10/2025
Last modified:
20/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ext4: improve error handling from ext4_dirhash()<br /> <br /> The ext4_dirhash() will *almost* never fail, especially when the hash<br /> tree feature was first introduced. However, with the addition of<br /> support of encrypted, casefolded file names, that function can most<br /> certainly fail today.<br /> <br /> So make sure the callers of ext4_dirhash() properly check for<br /> failures, and reflect the errors back up to their callers.

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:*:*:*:*:*:*:*:* 5.2 (including) 5.15.112 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.29 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.2.16 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.3 (including) 6.3.3 (excluding)
cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools