CVE-2024-39494

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

12/07/2024

Last modified:

13/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry&#39;s dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent&#39;s inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.

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::::::::		6.1.97 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.35 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.9.6 (excluding)

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

CVE-2024-39494

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools