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CVE-2016-0723

Description

Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.

POC

Reference

- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

- http://www.ubuntu.com/usn/USN-2930-2

- http://www.ubuntu.com/usn/USN-2932-1

- http://www.ubuntu.com/usn/USN-2948-2

Github

No PoCs found on GitHub currently.