The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf
 without checking the available space and without implementing outgoing 
PEAP fragmentation. Thus a pppd process connecting to a server which 
requests PEAP authentication can be induced to corrupt global static 
data following the outpacket_buf array, most likely causing incorrect behavior or a crash.