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CVE-2024-53167

7.5 · HIGH
Published Dec 27, 2024 linux CWE-476 EPSS 0.64% (48th pctl)

Overview

CVE-2024-53167 is a high-severity vulnerability affecting linux linux_kernel. 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 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 >= 6.11, < 6.11.11 Affected

Frequently Asked Questions

What is CVE-2024-53167?

CVE-2024-53167 is a high-severity vulnerability affecting linux linux_kernel. 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 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.

How can CyberStrike help with CVE-2024-53167?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-53167 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.