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CVE-2024-50046

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies() On the node of an NFS client, some files saved in the mountp…

Published Oct 21, 2024CWE-476EPSS 0.58%

Overview

CVE-2024-50046 is a critical-severity vulnerability. It was published on October 21, 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:

NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()

On the node of an NFS client, some files saved in the mountpoint of the

NFS server were copied to another location of the same NFS server.

Accidentally, the nfs42_complete_copies() got a NULL-pointer dereference

crash with the following syslog:

[232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116

[232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116

[232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058

[232066.588586] Mem abort info:

[232066.588701] ESR = 0x0000000096000007

[232066.588862] EC = 0x25: DABT (current EL), IL = 32 bits

[232066.589084] SET = 0, FnV = 0

[232066.589216] EA = 0, S1PTW = 0

[232066.589340] FSC = 0x07: level 3 translation fault

[2320

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/584c019baedddec3fd634053e8fb2d8836108d38Refgit.kernel.org/stable/c/632344b9efa064ca737bfcdaaaced59fd5f18ae9Refgit.kernel.org/stable/c/a848c29e3486189aaabd5663bc11aea50c5bd144Refgit.kernel.org/stable/c/ef9189bb15dcbe7ed3f3515aaa6fc8bf7483960dRefgit.kernel.org/stable/c/f892165c564e3aab272948dbb556cc20e290c55aRefgit.kernel.org/stable/c/fca41e5fa4914d12b2136c25f9dad69520b52683Reflists.debian.org/debian-lts-announce/2025/01/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.htmlRefcert-portal.siemens.com/productcert/html/ssa-265688.htmlRefcert-portal.siemens.com/productcert/html/ssa-355557.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50046?

CVE-2024-50046 is a critical-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-50046?

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-2024-50046?

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-2024-50046?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50046 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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