CVE-2023-52679

CVE Details

Release Date:

2024-05-17

Description

In the Linux kernel, the following vulnerability has been resolved:\nof: Fix double free in of_parse_phandle_with_args_map\nIn of_parse_phandle_with_args_map() the inner loop that\niterates through the map entries calls of_node_put(new)\nto free the reference acquired by the previous iteration\nof the inner loop. This assumes that the value of 'new' is\nNULL on the first iteration of the inner loop.\nMake sure that this is true in all iterations of the outer\nloop by setting 'new' to NULL after its value is assigned to 'cur'.\nExtend the unittest to detect the double free and add an additional\ntest case that actually triggers this path.

See more information about CVE-2023-52679 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-5101	2024-08-08
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14