CVE-2024-42251

5.5 · MEDIUM

Published Aug 8, 2024 linux CWE-617 EPSS 0.21% (11th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-42251 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 8, 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:

mm: page_ref: remove folio_try_get_rcu()

The below bug was reported on a non-SMP kernel:

[ 275.267158][ T4335] ------------[ cut here ]------------

[ 275.267949][ T4335] kernel BUG at include/linux/page_ref.h:275!

[ 275.268526][ T4335] invalid opcode: 0000 [#1] KASAN PTI

[ 275.269001][ T4335] CPU: 0 PID: 4335 Comm: trinity-c3 Not tainted 6.7.0-rc4-00061-gefa7df3e3bb5 #1

[ 275.269787][ T4335] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014

[ 275.270679][ T4335] RIP: 0010:try_get_folio (include/linux/page_ref.h:275 (discriminator 3) mm/gup.c:79 (discriminator 3))

[ 275.272813][ T4335] RSP: 0018:ffffc90005dcf650 EFLAGS: 00010202

[ 275.273346][ T4335] RAX: 0000000000000246 RBX: ffffea00066e0000 RCX: 0000000000000000

[ 275.274032][ T4335] RDX: fffff94000cdc007 RSI: 0000000000000004 RDI: ffffea00066e0034

[ 275.274719][ T4335] RBP: ffffea00066e0000 R08: 00000000000000

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	>= 6.6, < 6.6.42	Affected

References

Ref git.kernel.org/stable/c/16380f52b72166d6a33b508cc2509716f436253f Ref git.kernel.org/stable/c/e7db2762ea3e69f215b3ec4db666006deccc37b4 Ref git.kernel.org/stable/c/fa2690af573dfefb47ba6eef888797a64b6b5f3c

Frequently Asked Questions

What is CVE-2024-42251?

CVE-2024-42251 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 8, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42251?

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-2024-42251?

How can CyberStrike help with CVE-2024-42251?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-42251 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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