CVE-2024-53221

5.5 · MEDIUM

Published Dec 27, 2024 linux CWE-476 EPSS 0.22% (13th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-53221 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 27, 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:

f2fs: fix null-ptr-deref in f2fs_submit_page_bio()

There's issue as follows when concurrently installing the f2fs.ko

module and mounting the f2fs file system:

KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]

RIP: 0010:__bio_alloc+0x2fb/0x6c0 [f2fs]

Call Trace:

<TASK>

f2fs_submit_page_bio+0x126/0x8b0 [f2fs]

__get_meta_page+0x1d4/0x920 [f2fs]

get_checkpoint_version.constprop.0+0x2b/0x3c0 [f2fs]

validate_checkpoint+0xac/0x290 [f2fs]

f2fs_get_valid_checkpoint+0x207/0x950 [f2fs]

f2fs_fill_super+0x1007/0x39b0 [f2fs]

mount_bdev+0x183/0x250

legacy_get_tree+0xf4/0x1e0

vfs_get_tree+0x88/0x340

do_new_mount+0x283/0x5e0

path_mount+0x2b2/0x15b0

__x64_sys_mount+0x1fe/0x270

do_syscall_64+0x5f/0x170

entry_SYSCALL_64_after_hwframe+0x76/0x7e

Above issue happens as the biset of the f2fs file system is not

initialized before register "f2fs_fs_type".

To address above issue just register "f2fs_fs_type"

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	>= 5.6, < 6.11.11	Affected

References

Ref git.kernel.org/stable/c/32f5e291b7677495f98246eec573767430321c08 Ref git.kernel.org/stable/c/4289be8465924748daa9bf14866eb7f0987d4e39 Ref git.kernel.org/stable/c/8dddc12d03248755d9f709bc1eb9e3ea2bf1b322 Ref git.kernel.org/stable/c/9e11b1d5fda972f6be60ab732976a7c8e064cd56 Ref git.kernel.org/stable/c/b7d0a97b28083084ebdd8e5c6bccd12e6ec18faa Ref git.kernel.org/stable/c/bd9197b72d772be7bccc3b66c83a3157cfe2f96f

Frequently Asked Questions

What is CVE-2024-53221?

CVE-2024-53221 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-53221?

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-2024-53221?

How can CyberStrike help with CVE-2024-53221?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-53221 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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