Review reviewHigh

CVE-2024-56627

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read An offset from client could be a negative value, It could lead to an out-of-bounds read from the stream_buf. Note that this issue is coming when setting 'vfs objects = streams_xattr parameter' in ksmbd.conf.

CVSS: 7.1
EPSS: -
CISA KEV: Not listed
Published: 2024.12.28

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 7.1

Vulnerability overview

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 6bd1bf0e8c42f10a9a9679a4c103a9032d30594d, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < de4d790dcf53be41736239d7ee63849a16ff5d10, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 27de4295522e9a33e4a3fc72f7b8193df9eebe41, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 81eed631935f2c52cdaf6691c6d48e0b06e8ad73, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < fc342cf86e2dc4d2edb0fc2ff5e28b6c7845adb9, >= 5.15, >= 5.15 < 5.15.176, >= 5.16 < 6.1.120, >= 6.2 < 6.6.66, >= 6.7 < 6.12.5, 6.13
Fixed versions: 5.15.176, 6.1.120, 6.6.66, 6.12.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel 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:N/A:H
CWE: CWE-125