An issue was discovered in the Linux kernel before 6.3.8.... · CVE-2023-38431 · GitHub Advisory Database · GitHub

An issue was discovered in the Linux kernel before 6.3.8....

Critical severity Unreviewed Published Jul 18, 2023 to the GitHub Advisory Database • Updated Jun 18, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read.

References

Published by the National Vulnerability Database

Jul 18, 2023

Published to the GitHub Advisory Database Jul 18, 2023

Last updated Jun 18, 2024

Severity

Critical

9.1

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H