Posted by Ron E on Jan 10
A stack-based buffer overflow vulnerability exists in the RIOT OS ethos
utility due to missing bounds checking when processing incoming serial
frame data. The vulnerability occurs in the _handle_char() function, where
incoming frame bytes are appended to a fixed-size stack buffer
(serial->frame) without verifying that the current write index
(serial->framebytes) remains within bounds. An attacker capable of sending
crafted serial or…
– Read More – Full Disclosure
