CVE-2024-47692

6.5 · MEDIUM

Published Oct 21, 2024 linux CWE-476 EPSS 1.16% (65th pctl) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-47692 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 21, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical Description

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

nfsd: return -EINVAL when namelen is 0

When we have a corrupted main.sqlite in /var/lib/nfs/nfsdcld/, it may

result in namelen being 0, which will cause memdup_user() to return

ZERO_SIZE_PTR.

When we access the name.data that has been assigned the value of

ZERO_SIZE_PTR in nfs4_client_to_reclaim(), null pointer dereference is

triggered.

[ T1205] ==================================================================

[ T1205] BUG: KASAN: null-ptr-deref in nfs4_client_to_reclaim+0xe9/0x260

[ T1205] Read of size 1 at addr 0000000000000010 by task nfsdcld/1205

[ T1205]

[ T1205] CPU: 11 PID: 1205 Comm: nfsdcld Not tainted 5.10.0-00003-g2c1423731b8d #406

[ T1205] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014

[ T1205] Call Trace:

[ T1205] dump_stack+0x9a/0xd0

[ T1205] ? nfs4_client_to_reclaim+0xe9/0x260

[ T1205] __kasan_report.cold+0x3

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	>= 5.2, < 5.10.227	Affected

References

Frequently Asked Questions

What is CVE-2024-47692?

CVE-2024-47692 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 21, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-47692?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-47692?

How can CyberStrike help with CVE-2024-47692?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-47692 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.

How CyberStrike Helps

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HackBrowser

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