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CVE-2023-38431

Published: Jul 17, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-125
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
1.1%
Top 39.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

linux kernellinux
On-premOS
Operating Systems
solidfire \& hci management nodenetappHardware Firmware
h300snetappHardware Firmware
h410snetappHardware Firmware
h500snetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
netappcommercialUSHardware Firmware
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8
cdn.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb/server?id=368ba06881c395f1c9a7ba22203cf8d78b4addc0
git.kernel.org
https://security.netapp.com/advisory/ntap-20230824-0011/
security.netapp.com
and 19 more references View all →

Timeline

Published
Jul 17, 2023
Last Updated
Nov 21, 2024

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