CVE-2023-53456

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

01/10/2025

Last modified:

16/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla4xxx: Add length check when parsing nlattrs There are three places that qla4xxx parses nlattrs: - qla4xxx_set_chap_entry() - qla4xxx_iface_set_param() - qla4xxx_sysfs_ddb_set_param() and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data. Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.

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::::::::	3.2 (including)	4.14.326 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.295 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.257 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.195 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.132 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.53 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.4.16 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.5 (including)	6.5.3 (excluding)

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

CVE-2023-53456

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools