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CVE
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CVE-2017-7889Date: (C)2017-04-21   (M)2018-09-27


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 7.2
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 5.9Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: COMPLETE
Scope: UNCHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
BID-97690
DSA-3945
RHSA-2017:1842
RHSA-2017:2077
RHSA-2017:2669
USN-3583-1
USN-3583-2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94
http://www.openwall.com/lists/oss-security/2017/04/16/4
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94

CPE    1
cpe:/o:linux:linux_kernel:4.10.10
CWE    1
CWE-284
OVAL    17
oval:org.secpod.oval:def:703648
oval:org.secpod.oval:def:112321
oval:org.secpod.oval:def:112333
oval:org.secpod.oval:def:703645
...

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