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CVE-2017-12192

Description

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

POC

Reference

- https://usn.ubuntu.com/3583-2/

Github

No PoCs found on GitHub currently.