CVE-2024-53235

5.5 · MEDIUM

Published Dec 27, 2024 linux CWE-476 EPSS 0.17% (7th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-53235 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:

erofs: fix file-backed mounts over FUSE

syzbot reported a null-ptr-deref in fuse_read_args_fill:

fuse_read_folio+0xb0/0x100 fs/fuse/file.c:905

filemap_read_folio+0xc6/0x2a0 mm/filemap.c:2367

do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3825

read_mapping_folio include/linux/pagemap.h:1011 [inline]

erofs_bread+0x34d/0x7e0 fs/erofs/data.c:41

erofs_read_superblock fs/erofs/super.c:281 [inline]

erofs_fc_fill_super+0x2b9/0x2500 fs/erofs/super.c:625

Unlike most filesystems, some network filesystems and FUSE need

unavoidable valid `file` pointers for their read I/Os [1].

Anyway, those use cases need to be supported too.

[1] https://docs.kernel.org/filesystems/vfs.html

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	>= 6.12, < 6.12.2	Affected

References

Ref git.kernel.org/stable/c/3a23787ca8756920d65fda39f41353a4be1d1642 Ref git.kernel.org/stable/c/5036f2f024cac40a02ea6ea70de2c3a4407d16bc

Frequently Asked Questions

What is CVE-2024-53235?

CVE-2024-53235 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-2024-53235?

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-2024-53235?

How can CyberStrike help with CVE-2024-53235?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-53235 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.

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