CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of Information Elements (IEs) in the rtl8723bs driver, which can lead to out-of-bounds (OOB) reads due to insufficient validation of IE lengths before dereferencing. This flaw could allow an attacker to exploit the driver, potentially leading to information disclosure or system instability. Organizations using Linux systems, particularly those relying on the affected driver for wireless communication, should prioritize applying the patch to mitigate the risk.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop The loop in is_ap_in_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload: - pIE->element_id and pIE->length are read without checking that i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the buffer causes an OOB read. - For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12, which requires pIE->length >= 16. For WLAN_EID_RSN it compares pIE->data + 8, requiring pIE->length >= 12. Neither requirement is checked. Add the missing IE header and payload bounds checks and guard each data access with an explicit pIE->length minimum, matching the pattern established in update_beacon_info().