CVE-2017-7889

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-732

Affected software

No affected versions have been published.

Timeline

Published: Apr 17, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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