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CVE-2024-53167

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: nfs/blocklayout: Don't attempt unregister for invalid block device Since commit d869da91cccb ("nfs/blocklayout: Fix premature P…

Published Dec 27, 2024CWE-476EPSS 0.64%

Overview

CVE-2024-53167 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. 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:

nfs/blocklayout: Don't attempt unregister for invalid block device

Since commit d869da91cccb ("nfs/blocklayout: Fix premature PR key

unregistration") an unmount of a pNFS SCSI layout-enabled NFS may

dereference a NULL block_device in:

bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]

bl_free_device+0x70/0x80 [blocklayoutdriver]

bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]

nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]

nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]

unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]

nfs4_destroy_server+0x36/0x70 [nfsv4]

nfs_free_server+0x23/0xe0 [nfs]

deactivate_locked_super+0x30/0xb0

cleanup_mnt+0xba/0x150

task_work_run+0x59/0x90

syscall_exit_to_user_mode+0x217/0x220

do_syscall_64+0x8e/0x160

This happens because even though we were able to create the

nfs4_deviceid_node, the lookup for the device was unable to attach the

block device to the pnfs_block_dev.

If we nev

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.

Frequently asked questions

What is CVE-2024-53167?

CVE-2024-53167 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-53167?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-53167?

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-2024-53167?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-53167 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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