What is CVE-2024-43824?

CVE-2024-43824 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 5.7 onward and patched in 6.10.3 and 6.11. CVE-2024-43824 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-43824?

CVE-2024-43824 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-2024-43824?

Yes, CVE-2024-43824 has been patched. Fixed versions include 6.10.3 and 6.11. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-43824 actively exploited?

CVE-2024-43824 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-2024-43824

Medium

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init() Instead of getting the epc_features from pci_epc_get_features() API, use the cached pci_epf_test::epc_features value to avoid the NULL check. Since the NULL check is already performed in pci_epf_test_bind(), having one more check in pci_epf_test_core_init() is redundant and it is not possible to hit the NULL pointer dereference. Also with commit a01e7214bef9 ("PCI: endpoint: Remove "core_init_notifier" flag"), 'epc_features' got dereferenced without the NULL check, leading to the following false positive Smatch warning: drivers/pci/endpoint/functions/pci-epf-test.c:784 pci_epf_test_core_init() error: we previously assumed 'epc_features' could be null (see line 747) Thus, remove the redundant NULL check and also use the epc_features:: {msix_capable/msi_capable} flags directly to avoid local variables. [kwilczynski: commit log]

Package Linux Kernel

Published 2024-08-17

Last modified 2024-09-03

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-2024-43824 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 5.7 and later are affected. Fixed in 6.10.3, 6.11 and their respective stable series.

Affected from

≥ 5.7

Fixed in

✓ 6.10.3 6.10.x ✓ 6.11

References

2 total

Kernel Git
https://git.kernel.org/stable/c/5a5095a8bd1bd349cce1c879e5e44407a34dda8a

Patch
Kernel Git
https://git.kernel.org/stable/c/af4ad016abb1632ff7ee598a6037952b495e5b80

Patch

Details

CVE ID CVE-2024-43824

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-08-17

Modified 2024-09-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-43824?

CVE-2024-43824 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 5.7 onward and has been patched in 6.10.3 and 6.11. CVE-2024-43824 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-43824?

CVE-2024-43824 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-2024-43824?

Yes. CVE-2024-43824 has been patched. Fixed versions include 6.10.3 and 6.11. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-43824 actively exploited?

No. CVE-2024-43824 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.