What is CVE-2024-42235?

CVE-2024-42235 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 6.6 onward and patched in 6.6.41, 6.9.10 and 6.10. CVE-2024-42235 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42235?

CVE-2024-42235 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-42235?

Yes, CVE-2024-42235 has been patched. Fixed versions include 6.6.41, 6.9.10 and 6.10. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-42235 actively exploited?

CVE-2024-42235 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2024-42235

Medium

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Add NULL pointer check to crst_table_free() base_crst_free() crst_table_free() used to work with NULL pointers before the conversion to ptdescs. Since crst_table_free() can be called with a NULL pointer (error handling in crst_table_upgrade() add an explicit check. Also add the same check to base_crst_free() for consistency reasons. In real life this should not happen, since order two GFP_KERNEL allocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.

Package Linux Kernel

Published 2024-08-07

Last modified 2024-08-08

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2024-42235 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.6 and later are affected. Fixed in 6.6.41, 6.9.10, 6.10 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.41 6.6.x ✓ 6.9.10 6.9.x ✓ 6.10

References

3 total

Kernel Git
https://git.kernel.org/stable/c/794fa52b94637d6b2e8c9474fbe3983af5c9f046

Patch
Kernel Git
https://git.kernel.org/stable/c/b5efb63acf7bddaf20eacfcac654c25c446eabe8

Patch
Kernel Git
https://git.kernel.org/stable/c/f80bd8bb6f380bc265834c46058d38b34174813e

Patch

Details

CVE ID CVE-2024-42235

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-08-07

Modified 2024-08-08

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-42235?

CVE-2024-42235 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.41, 6.9.10 and 6.10. CVE-2024-42235 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42235?

CVE-2024-42235 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-42235?

Yes. CVE-2024-42235 has been patched. Fixed versions include 6.6.41, 6.9.10 and 6.10. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-42235 actively exploited?

No. CVE-2024-42235 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.