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LIN7-8049 : Security Advisory - linux - CVE-2017-7889

Created: Apr 26, 2017    Updated: Sep 8, 2018
Resolved Date: Jan 17, 2018
Found In Version: 7.0.0.24
Fix Version: 7.0.0.28
Severity: Standard
Applicable for: Wind River Linux 7
Component/s: Kernel

Description

The mm subsystem in the Linux kernel through 4.10.10 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.

https://nvd.nist.gov/vuln/detail/CVE-2017-7889

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