CVE-2024-38630
"Synaptics Linux Watchdog Kernel Use-After-Free Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger When the cpu5wdt module is removing, the origin code uses del_timer() to de-activate the timer. If the timer handler is running, del_timer() could not stop it and will return directly. If the port region is released by release_region() and then the timer handler cpu5wdt_trigger() calls outb() to write into the region that is released, the use-after-free bug will happen. Change del_timer() to timer_shutdown_sync() in order that the timer handler could be finished before the port region is released.
INFO
Published Date :
June 21, 2024, 11:15 a.m.
Last Modified :
Sept. 9, 2024, 1:43 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
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CVE-2024-38630.
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).
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The following list is the news that have been mention
CVE-2024-38630 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-38630 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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Initial Analysis by [email protected]
Sep. 09, 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/573601521277119f2e2ba5f28ae6e87fc594f4d4 No Types Assigned https://git.kernel.org/stable/c/573601521277119f2e2ba5f28ae6e87fc594f4d4 Patch Changed Reference Type https://git.kernel.org/stable/c/9b1c063ffc075abf56f63e55d70b9778ff534314 No Types Assigned https://git.kernel.org/stable/c/9b1c063ffc075abf56f63e55d70b9778ff534314 Patch Changed Reference Type https://git.kernel.org/stable/c/f19686d616500cd0d47b30cee82392b53f7f784a No Types Assigned https://git.kernel.org/stable/c/f19686d616500cd0d47b30cee82392b53f7f784a Patch Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.8 up to (excluding) 6.6.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.4 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger When the cpu5wdt module is removing, the origin code uses del_timer() to de-activate the timer. If the timer handler is running, del_timer() could not stop it and will return directly. If the port region is released by release_region() and then the timer handler cpu5wdt_trigger() calls outb() to write into the region that is released, the use-after-free bug will happen. Change del_timer() to timer_shutdown_sync() in order that the timer handler could be finished before the port region is released. Added Reference kernel.org https://git.kernel.org/stable/c/9b1c063ffc075abf56f63e55d70b9778ff534314 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f19686d616500cd0d47b30cee82392b53f7f784a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/573601521277119f2e2ba5f28ae6e87fc594f4d4 [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-2024-38630 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-2024-38630
weaknesses.