CVE-2024-39494
Linux IMA Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry'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's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
INFO
Published Date :
July 12, 2024, 1:15 p.m.
Last Modified :
March 13, 2025, 1:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-39494.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-39494 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-39494 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1a Added Reference https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bb -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dec. 14, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4 Added Reference https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c Added Reference https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de Added Reference https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c -
Initial Analysis by [email protected]
Jul. 24, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4 No Types Assigned https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4 Patch Changed Reference Type https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c No Types Assigned https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c Patch Changed Reference Type https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de No Types Assigned https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de Patch Changed Reference Type https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c No Types Assigned https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c Patch Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.1.97 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.35 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.6 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 12, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry'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's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead. Added Reference kernel.org https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-39494 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-39494
weaknesses.