CVE-2017-7889

7.8 HIGH
Published: April 17, 2017 Modified: May 13, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3945
Source: cve@mitre.org
Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/04/16/4
Source: cve@mitre.org
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/97690
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1842
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1854
Source: cve@mitre.org
Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6
Source: cve@mitre.org
Third Party Advisory
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
https://usn.ubuntu.com/3583-1/
Source: cve@mitre.org
Third Party Advisory
https://usn.ubuntu.com/3583-2/
Source: cve@mitre.org
Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3945
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/04/16/4
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/97690
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1842
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1854
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
https://usn.ubuntu.com/3583-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://usn.ubuntu.com/3583-2/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

24 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.3%
22th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-732

Affected Vendors

canonical debian linux

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