CVE-2017-7889 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94 Issue Tracking  Patch  Third Party Advisory 
http://www.debian.org/security/2017/dsa-3945
http://www.openwall.com/lists/oss-security/2017/04/16/4 Mailing List  Patch  Third Party Advisory 
http://www.securityfocus.com/bid/97690 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
https://access.redhat.com/errata/RHSA-2018:1854
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94 Issue Tracking  Patch  Third Party Advisory 
https://usn.ubuntu.com/3583-1/
https://usn.ubuntu.com/3583-2/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-732 Incorrect Permission Assignment for Critical Resource cwe source acceptance level NIST  

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7889
NVD Published Date:
04/16/2017
NVD Last Modified:
01/05/2021
Source:
MITRE