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CVE-2016-4470

Description

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.

POC

Reference

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

- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

- http://www.ubuntu.com/usn/USN-3052-1

- http://www.ubuntu.com/usn/USN-3056-1

Github

No PoCs found on GitHub currently.