7.4
CVSSv3

CVE-2016-6516

Published: 06/08/2016 Updated: 28/11/2016
CVSS v2 Base Score: 4.4 | Impact Score: 6.4 | Exploitability Score: 3.4
CVSS v3 Base Score: 7.4 | Impact Score: 5.9 | Exploitability Score: 1.4
VMScore: 392
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel up to and including 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.

Vulnerability Trend

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linux linux kernel

Github Repositories

An demonstration of how to exploit double-fetch vulnerability CVE-2016-6516

CVE-2016-6516-exploit