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CVE-2024-40963

5.5 · MEDIUM
Published Jul 12, 2024 linux CWE-754 EPSS 0.29% (21th pctl)

Overview

CVE-2024-40963 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 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:

mips: bmips: BCM6358: make sure CBR is correctly set

It was discovered that some device have CBR address set to 0 causing

kernel panic when arch_sync_dma_for_cpu_all is called.

This was notice in situation where the system is booted from TP1 and

BMIPS_GET_CBR() returns 0 instead of a valid address and

!!(read_c0_brcm_cmt_local() & (1 << 31)); not failing.

The current check whether RAC flush should be disabled or not are not

enough hence lets check if CBR is a valid address or not.

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 >= 5.4.240, < 5.4.279 Affected

References

Ref git.kernel.org/stable/c/10afe5f7d30f6fe50c2b1177549d0e04921fc373 Ref git.kernel.org/stable/c/2cd4854ef14a487bcfb76c7980675980cad27b52 Ref git.kernel.org/stable/c/36d771ce6028b886e18a4a8956a5d23688e4e13d Ref git.kernel.org/stable/c/6c0f6ccd939166f56a904c792d7fcadae43b9085 Ref git.kernel.org/stable/c/89167072fd249e5f23ae2f8093f87da5925cef27 Ref git.kernel.org/stable/c/ce5cdd3b05216b704a704f466fb4c2dff3778caf Ref git.kernel.org/stable/c/da895fd6da438af8d9326b8f02d715a9c76c3b5b Ref git.kernel.org/stable/c/10afe5f7d30f6fe50c2b1177549d0e04921fc373 Ref git.kernel.org/stable/c/2cd4854ef14a487bcfb76c7980675980cad27b52 Ref git.kernel.org/stable/c/36d771ce6028b886e18a4a8956a5d23688e4e13d

Frequently Asked Questions

What is CVE-2024-40963?

CVE-2024-40963 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-40963?

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-2024-40963?

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.

How can CyberStrike help with CVE-2024-40963?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-40963 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.

How CyberStrike Helps

Autonomous Discovery

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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