What is CVE-2024-38630?

CVE-2024-38630 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 2.6.12 onward and patched in 6.6.33, 6.9.4 and 6.10. CVE-2024-38630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-38630?

CVE-2024-38630 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-38630?

Yes, CVE-2024-38630 has been patched. Fixed versions include 6.6.33, 6.9.4 and 6.10. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-38630 actively exploited?

CVE-2024-38630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2024-38630

High

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.

Package Linux Kernel

Published 2024-06-21

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-416

CVE-2024-38630 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 2.6.12 and later are affected. Fixed in 6.6.33, 6.9.4, 6.10 and their respective stable series.

Affected from

≥ 2.6.12

Fixed in

✓ 6.6.33 6.6.x ✓ 6.9.4 6.9.x ✓ 6.10

References

3 total

Kernel Git
https://git.kernel.org/stable/c/573601521277119f2e2ba5f28ae6e87fc594f4d4

Patch
Kernel Git
https://git.kernel.org/stable/c/9b1c063ffc075abf56f63e55d70b9778ff534314

Patch
Kernel Git
https://git.kernel.org/stable/c/f19686d616500cd0d47b30cee82392b53f7f784a

Patch

Details

CVE ID CVE-2024-38630

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-06-21

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-38630?

CVE-2024-38630 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 2.6.12 onward and has been patched in 6.6.33, 6.9.4 and 6.10. CVE-2024-38630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-38630?

CVE-2024-38630 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-38630?

Yes. CVE-2024-38630 has been patched. Fixed versions include 6.6.33, 6.9.4 and 6.10. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-38630 actively exploited?

No. CVE-2024-38630 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.