High severity8.1NVD Advisory· Published Jul 24, 2023· Updated Jun 17, 2026
CVE-2023-32257
CVE-2023-32257
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 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.
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Affected products
6cpe:/o:redhat:enterprise_linux:6+ 3 more
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- cpe:/o:redhat:enterprise_linux:8
- cpe:/o:redhat:enterprise_linux:9
- Fedora/Fedorav5
Patches
Vulnerability mechanics
References
4- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- www.zerodayinitiative.com/advisories/ZDI-CAN-20596/nvdPatchThird Party AdvisoryVDB Entry
- access.redhat.com/security/cve/CVE-2023-32257nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20230915-0011/nvdThird Party AdvisoryVDB Entry
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