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CVE-2024-36977

7.8 · HIGH
Published Jun 18, 2024 linux EPSS 0.22% (12th pctl)

Overview

CVE-2024-36977 is a high-severity vulnerability affecting linux linux_kernel. It was published on June 18, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

usb: dwc3: Wait unconditionally after issuing EndXfer command

Currently all controller IP/revisions except DWC3_usb3 >= 310a

wait 1ms unconditionally for ENDXFER completion when IOC is not

set. This is because DWC_usb3 controller revisions >= 3.10a

supports GUCTL2[14: Rst_actbitlater] bit which allows polling

CMDACT bit to know whether ENDXFER command is completed.

Consider a case where an IN request was queued, and parallelly

soft_disconnect was called (due to ffs_epfile_release). This

eventually calls stop_active_transfer with IOC cleared, hence

send_gadget_ep_cmd() skips waiting for CMDACT cleared during

EndXfer. For DWC3 controllers with revisions >= 310a, we don't

forcefully wait for 1ms either, and we proceed by unmapping the

requests. If ENDXFER didn't complete by this time, it leads to

SMMU faults since the controller would still be accessing those

requests.

Fix this by ensuring ENDXFER completion by adding

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 >= 6.1, < 6.1.92 Affected

Frequently Asked Questions

What is CVE-2024-36977?

CVE-2024-36977 is a high-severity vulnerability affecting linux linux_kernel. It was published on June 18, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-36977?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-36977?

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-2024-36977?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-36977 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.