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CVE-2024-39293

9.8 · CRITICAL
Published Jun 25, 2024 linux CWE-362 EPSS 0.31% (24th pctl)

Overview

CVE-2024-39293 is a critical-severity vulnerability affecting linux linux_kernel. It was published on June 25, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

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

Revert "xsk: Support redirect to any socket bound to the same umem"

This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db.

This patch introduced a potential kernel crash when multiple napi instances

redirect to the same AF_XDP socket. By removing the queue_index check, it is

possible for multiple napi instances to access the Rx ring at the same time,

which will result in a corrupted ring state which can lead to a crash when

flushing the rings in __xsk_flush(). This can happen when the linked list of

sockets to flush gets corrupted by concurrent accesses. A quick and small fix

is not possible, so let us revert this for now.

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 >= 6.9, < 6.9.5 Affected

Frequently Asked Questions

What is CVE-2024-39293?

CVE-2024-39293 is a critical-severity vulnerability affecting linux linux_kernel. It was published on June 25, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-39293?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-39293?

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-2024-39293?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-39293 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.