Integer Overflow in Linux Kernel's iwlwifi Driver Affecting Specific Versions
CVE-2023-53524
What is CVE-2023-53524?
An integer overflow has been identified in the iwl_write_to_user_buf() function within the iwlwifi driver of the Linux kernel. This occurs when the function, called by iwl_dbgfs_monitor_data_read(), receives a SIZE_MAX value for the count parameter. The result is a negative value for buf_size_left, which can lead to unintended behavior in memory operations, specifically a potential heap overflow. However, it is important to note that this is classified under debugfs operations, which are typically assigned 0400 permissions, limiting its impact in practical scenarios.
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Affected Version(s)
Linux f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 < 0ad8dd870aa187d0c21d032bb2c6433559075eec
Linux f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 < 059e426d666a41e26b184c177c1ca3ee2d6fa1b6
Linux f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 < 82f877ec9b041edc4c7c509c605cc3393d837bf0