CVE-2017-7889

CVE Details

Release Date:	2018-07-30
Impact:	None	What is this?

Description

The mm subsystem in the Linux kernel through 4.10.10 does not properlyenforce 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.

See more information about CVE-2017-7889 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	7.2
Vector String:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3658	2017-12-08
Oracle Linux version 6 (dtrace-modules-3.8.13-118.20.1.el6uek)	ELSA-2017-3657	2017-12-07
Oracle Linux version 6 (kernel)	ELSA-2018-1854	2018-06-25
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3657	2017-12-07
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3658	2017-12-08
Oracle Linux version 7 (dtrace-modules-3.8.13-118.20.1.el7uek)	ELSA-2017-3657	2017-12-07
Oracle Linux version 7 (kernel)	ELSA-2017-1842	2017-08-07
Oracle Linux version 7 (kernel)	ELSA-2017-1842-1	2017-08-15
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3657	2017-12-07
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0173	2017-12-08