CVE-2023-32257

linux: A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server

CVE-2023-32257 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-32257, released July 24, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.1
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0237
83rd percentile

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_SESSION_SETUP and SMB2_LOGOFF commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 6.1.37-1 DEBIAN-CVE-2023-32257 Jul 24, 2023
linux · Debian 13.5 (trixie) 6.3.7-1 DEBIAN-CVE-2023-32257 Jul 24, 2023
linux · Debian 14 6.3.7-1 DEBIAN-CVE-2023-32257 Jul 24, 2023

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