CVE-2023-32250

Session race condition remote code execution vulnerability

Description

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 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.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.08%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory netapp.com Third-Party Advisory zerodayinitiative.com
Affected: n/a kernel
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2023-32250 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2208849 issue tracking third party advisory patch
https://www.zerodayinitiative.com/advisories/ZDI-23-698/ vdb entry third party advisory
https://security.netapp.com/advisory/ntap-20230824-0004/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-32250?
CVE-2023-32250 has been scored as a critical severity vulnerability.
How to fix CVE-2023-32250?
To fix CVE-2023-32250, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-32250 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-32250 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-32250?
CVE-2023-32250 affects n/a kernel, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Fedora Fedora.
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