CVE-2024-35887
"AX25 Use-After-Free Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax25_ds_del_timer() | del_timer() | ax25_dev_put() //FREE | | ax25_dev-> //USE In order to mitigate bugs, when the device is detaching, use timer_shutdown_sync() to stop the timer.
INFO
Published Date :
May 19, 2024, 9:15 a.m.
Last Modified :
Dec. 31, 2024, 6:48 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2024-35887 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2024-35887.
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).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-35887 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-35887 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.
-
Initial Analysis by [email protected]
Dec. 31, 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 Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.12 up to (excluding) 6.6.26 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.8.5 *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b No Types Assigned https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b Patch Changed Reference Type https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b No Types Assigned https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b Patch Changed Reference Type https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 No Types Assigned https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 Patch Changed Reference Type https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 No Types Assigned https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 Patch Changed Reference Type https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 No Types Assigned https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 Patch Changed Reference Type https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 No Types Assigned https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 Patch -
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/74204bf9050f7627aead9875fe4e07ba125cb19b Added Reference https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 Added Reference https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 19, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax25_ds_del_timer() | del_timer() | ax25_dev_put() //FREE | | ax25_dev-> //USE In order to mitigate bugs, when the device is detaching, use timer_shutdown_sync() to stop the timer. Added Reference kernel.org https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 [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-2024-35887 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-2024-35887
weaknesses.