Threats Tagged 'cve-2025-68254'

A vulnerability in the Linux kernel's staging rtl8723bs driver was fixed to prevent an out-of-bounds read during parsing of the Extended Supported Rates (ESR) Information Element (IE) in beacon frames. The flaw allowed reading beyond the frame buffer when a malformed beacon placed the ESR IE at the buffer's end, potentially causing a kernel panic. The fix added boundary checks to ensure safe access within the frame limits.

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.