CVE-2023-52755: ksmbd: fix slab out of bounds write in smb_inherit_dacl()

Published May 21, 2024
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slab out of bounds write in smbinheritdacl()

slab out-of-bounds write is caused by that offsets is bigger than pntsd allocation size. This patch add the check to validate 3 offsets using allocation size.

Affected Software

9 affected componentsFixes available
Linux Linux kernel>=5.15<5.15.140
Linux Linux kernel>=5.16<6.1.64
Linux Linux kernel>=6.2<6.5.13
Linux Linux kernel>=6.6<6.6.3
Microsoft azl3 kernel 6.6.3.1-1
Microsoft cbl2 kernel 5.15.176.3-3
Microsoft cbl2 kernel 5.15.140.1-1
Microsoft cbl2 kernel 5.15.176.3-3
Microsoft azl3 kernel 6.6.82.1-1

Event History

May 21, 2024
CVE Published
via MITRE·03:30 PM
Data Sourced
via MITRE·03:30 PM
DescriptionSeverity
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 4, 2025
Data Sourced
via Microsoft·04:22 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·04:22 AM
Affected Software
Updated
via Microsoft·04:22 AM
DescriptionSeverity
Updated
via Microsoft·04:22 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2023-52755?

The severity of CVE-2023-52755 is categorized as medium due to the potential for out-of-bounds memory access in the kSMBD component.

2

How do I fix CVE-2023-52755?

To fix CVE-2023-52755, upgrade your Linux kernel to versions 5.15.140, 6.1.64, or any version from 6.2 to 6.6.3 or later.

3

Who is affected by CVE-2023-52755?

CVE-2023-52755 affects users running specific versions of the Linux kernel, particularly those between 5.15 and 6.6.3.

4

What type of vulnerability is CVE-2023-52755?

CVE-2023-52755 is a memory corruption vulnerability related to slab out-of-bounds write in the Linux kernel.

5

When was CVE-2023-52755 resolved?

CVE-2023-52755 was resolved with a patch released in the Linux kernel after the discovery of the vulnerability.

Contact

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