Review reviewHigh

CVE-2023-54063

Linux

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix OOB read in indx_insert_into_buffer Syzbot reported a OOB read bug: BUG: KASAN: slab-out-of-bounds in indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 Read of size 17168 at addr ffff8880255e06c0 by task syz-executor308/3630 Call Trace: <TASK> memmove+0x25/0x60 mm/kasan/shadow.c:54 indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 indx_insert_entry+0x446/0x6b0 fs/ntfs3/index.c:1863 ntfs_create_inode+0x1d3f/0x35c0 fs/ntfs3/inode.c:1548 ntfs_create+0x3e/0x60 fs/ntfs3/namei.c:100 lookup_open fs/...

CVSS: 7.8
EPSS: 0.17%
CISA KEV: Not listed
Published: 2025.12.24

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.17%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux
Affected versions: >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < cd7e1d67924081717c5c96ead758a1a77867689a, >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 17048287ac79abd33b275ac3b5738285d406481b, >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < a7e5dba10ba1402dd6c2f961a70320770865c4a5, >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < 4bf3b564e27a518f158a83d5e1a50064ed6136a0, >= 82cae269cfa953032fbb8980a7d554d60fb00b17 < b8c44949044e5f7f864525fdffe8e95135ce9ce5, >= 5.15
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: Not available