What is CVE-2024-42255?

CVE-2024-42255 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 6.10 onward and patched in 6.10.1 and 6.11. CVE-2024-42255 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42255?

CVE-2024-42255 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-2024-42255?

Yes, CVE-2024-42255 has been patched. Fixed versions include 6.10.1 and 6.11. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-42255 actively exploited?

CVE-2024-42255 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-2024-42255

Medium

In the Linux kernel, the following vulnerability has been resolved: tpm: Use auth only after NULL check in tpm_buf_check_hmac_response() Dereference auth after NULL check in tpm_buf_check_hmac_response(). Otherwise, unless tpm2_sessions_init() was called, a call can cause NULL dereference, when TCG_TPM2_HMAC is enabled. [jarkko: adjusted the commit message.]

Package Linux Kernel

Published 2024-08-08

Last modified 2024-09-06

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-2024-42255 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 6.10 and later are affected. Fixed in 6.10.1, 6.11 and their respective stable series.

Affected from

≥ 6.10

Fixed in

✓ 6.10.1 6.10.x ✓ 6.11

References

2 total

Kernel Git
https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b

Patch
Kernel Git
https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562

Patch

Details

CVE ID CVE-2024-42255

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-08-08

Modified 2024-09-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-42255?

CVE-2024-42255 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 6.10 onward and has been patched in 6.10.1 and 6.11. CVE-2024-42255 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42255?

CVE-2024-42255 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-2024-42255?

Yes. CVE-2024-42255 has been patched. Fixed versions include 6.10.1 and 6.11. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-42255 actively exploited?

No. CVE-2024-42255 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.