CVE-2024-46824

5.5 · MEDIUM

Published Sep 27, 2024 linux CWE-476 EPSS 0.21% (10th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-46824 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

iommufd: Require drivers to supply the cache_invalidate_user ops

If drivers don't do this then iommufd will oops invalidation ioctls with

something like:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000

Mem abort info:

ESR = 0x0000000086000004

EC = 0x21: IABT (current EL), IL = 32 bits

SET = 0, FnV = 0

EA = 0, S1PTW = 0

FSC = 0x04: level 0 translation fault

user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000

[0000000000000000] pgd=0000000000000000, p4d=0000000000000000

Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP

Modules linked in:

CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9

Hardware name: linux,dummy-virt (DT)

pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)

pc : 0x0

lr : iommufd_hwpt_invalidate+0xa4/0x204

sp : ffff800080f3bcc0

x29: ffff800080f3bcf0 x28: ffff0000c369b300

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 6.8, < 6.10.10	Affected

References

Ref git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520 Ref git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47

Frequently Asked Questions

What is CVE-2024-46824?

CVE-2024-46824 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-46824?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-46824?

How can CyberStrike help with CVE-2024-46824?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-46824 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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