Denial-of-Service Vulnerability in Linux ksmbd Module

CVE-2023-39180

What is CVE-2023-39180?

A memory management flaw has been identified in the handling of SMB2_READ commands within the kernel ksmbd module. This vulnerability can lead to a denial-of-service condition, allowing an attacker to exploit it on systems where ksmbd is enabled. The issue stems from the failure to properly release memory after its intended lifetime, which could result in performance degradation or system unavailability. No authentication is required for exploitation, making it essential for users of affected Linux installations to implement appropriate mitigations.

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