CVE-2023-52679

Severity CVSS v4.0:

Pending analysis

Type:

CWE-415 Double Free

Publication date:

17/05/2024

Last modified:

10/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop. Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur". Extend the unittest to detect the double free and add an additional test case that actually triggers this path.

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::::::::	4.17 (including)	4.19.306 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.268 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.148 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.75 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.7.2 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*

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

CVE-2023-52679

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools