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CVE-2024-35939

9.3 · CRITICAL
Published May 19, 2024 linux EPSS 0.22% (13th pctl)

Overview

CVE-2024-35939 is a critical-severity vulnerability affecting linux linux_kernel. It was published on May 19, 2024 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical Description

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

dma-direct: Leak pages on dma_set_decrypted() failure

On TDX it is possible for the untrusted host to cause

set_memory_encrypted() or set_memory_decrypted() to fail such that an

error is returned and the resulting memory is shared. Callers need to

take care to handle these errors to avoid returning decrypted (shared)

memory to the page allocator, which could lead to functional or security

issues.

DMA could free decrypted/shared pages if dma_set_decrypted() fails. This

should be a rare case. Just leak the pages in this case instead of

freeing them.

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 >= 0, < 6.1.86 Affected

Frequently Asked Questions

What is CVE-2024-35939?

CVE-2024-35939 is a critical-severity vulnerability affecting linux linux_kernel. It was published on May 19, 2024 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

How severe is CVE-2024-35939?

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-35939?

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-2024-35939?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-35939 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.