The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel through 4.3.3 do not verify an address length, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application.
- http://www.ubuntu.com/usn/USN-2886-1
- http://www.ubuntu.com/usn/USN-2890-3
- https://github.com/ARPSyndicate/cvemon
- https://github.com/bcoles/kasld