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CVE-2024-42251

5.5 · MEDIUM

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] ------------[…

Published Aug 8, 2024CWE-617EPSS 0.21%

Overview

CVE-2024-42251 is a medium-severity vulnerability. 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, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/16380f52b72166d6a33b508cc2509716f436253fRefgit.kernel.org/stable/c/e7db2762ea3e69f215b3ec4db666006deccc37b4Refgit.kernel.org/stable/c/fa2690af573dfefb47ba6eef888797a64b6b5f3c

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42251?

CVE-2024-42251 is a medium-severity vulnerability. 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?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-42251?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42251 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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