CVE-2017-7889 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
Source:
MITRE
View Analysis Description
Analysis 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.
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.8 HIGH
Vector:
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
(V3.0 legend)
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
7.2 HIGH
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
(V2 legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.9
Access Vector (AV):
Local
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Complete
Integrity (I):
Complete
Availability (A):
Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
References to Advisories, Solutions, and Tools
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Technical Details
Vulnerability Type
(View All)
- Incorrect Permission Assignment for Critical Resource (CWE-732)
Change History
8 change records found
- show changes
CWE Remap -
10/2/2019 8:03:26 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
CWE |
CWE-284
|
CWE-732
|
CVE Modified by MITRE -
6/19/2018 9:29:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2018:1854 [No Types Assigned] |
CVE Modified by MITRE -
3/15/2018 9:29:10 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://usn.ubuntu.com/3583-1/ [No Types Assigned] |
| Added |
Reference |
|
https://usn.ubuntu.com/3583-2/ [No Types Assigned] |
CVE Modified by MITRE -
1/4/2018 9:31:53 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2017:1842 [No Types Assigned] |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2017:2077 [No Types Assigned] |
CVE Modified by MITRE -
12/30/2017 9:29:03 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2017:2669 [No Types Assigned] |
CVE Modified by MITRE -
11/3/2017 9:29:52 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.debian.org/security/2017/dsa-3945 [No Types Assigned] |
Initial Analysis -
4/21/2017 1:40:26 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:4.10.10:*:*:*:*:*:*:* (and previous) |
| Added |
CVSS V2 |
|
(AV:L/AC:L/Au:N/C:C/I:C/A:C) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-284 |
| Changed |
Reference Type |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94 No Types Assigned |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94 Issue Tracking, Patch, Third Party Advisory |
| Changed |
Reference Type |
http://www.openwall.com/lists/oss-security/2017/04/16/4 No Types Assigned |
http://www.openwall.com/lists/oss-security/2017/04/16/4 Mailing List, Patch, Third Party Advisory |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/97690 No Types Assigned |
http://www.securityfocus.com/bid/97690 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94 No Types Assigned |
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94 Issue Tracking, Patch, Third Party Advisory |
CVE Modified by MITRE -
4/18/2017 9:59:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/97690 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2017-7889
NVD Published Date:
04/16/2017
NVD Last Modified:
10/02/2019
|