What is CVE-2024-43821?

CVE-2024-43821 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). CVE-2024-43821 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-43821?

CVE-2024-43821 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-2024-43821?

No patch is currently available for CVE-2024-43821. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-43821 actively exploited?

CVE-2024-43821 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-2024-43821

Medium

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix a possible null pointer dereference In function lpfc_xcvr_data_show, the memory allocation with kmalloc might fail, thereby making rdp_context a null pointer. In the following context and functions that use this pointer, there are dereferencing operations, leading to null pointer dereference. To fix this issue, a null pointer check should be added. If it is null, use scnprintf to notify the user and return len.

Package Linux Kernel

Published 2024-08-17

Last modified 2024-09-03

CVSS version 3.1

Patch available

Awaiting data

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-2024-43821 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

References

The following references provide additional information about CVE-2024-43821 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/45b2a23e00d448a9e6d1f371ca3a4d4b073fe78c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/57600a7dd2b52c904f7c8d2cac0fd8c23868e680
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5e0bf3e8aec2cbc51123f84b29aaacbd91fc56fa
Patch

Details

CVE ID CVE-2024-43821

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-08-17

Modified 2024-09-03

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-43821?

CVE-2024-43821 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) . CVE-2024-43821 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-43821?

CVE-2024-43821 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-2024-43821?

No patch is currently available for CVE-2024-43821. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-43821 actively exploited?

No — CVE-2024-43821 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (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. View CWE-476 on MITRE CWE →