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
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
Source:
MITRE
Description Last Modified:
02/20/2018
View Analysis Description
Analysis Description
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
Source:
MITRE
Description Last Modified:
02/20/2018
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
5.5 MEDIUM
Vector:
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
(V3 legend)
Impact Score:
3.6
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):
None
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
4.9 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:C/I:N/A:N)
(V2 legend)
Impact Subscore:
6.9
Exploitability Subscore:
3.9
Access Vector (AV):
Local
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Complete
Integrity (I):
None
Availability (A):
None
Additional Information:
Allows unauthorized disclosure of information
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Technical Details
Vulnerability Type
(View All)
- Information Leak / Disclosure (CWE-200)
Change History
3 change records found
- show changes
CVE Modified by MITRE -
3/24/2018 9:29:02 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://www.exploit-db.com/exploits/44325/ [No Types Assigned] |
Initial Analysis -
3/19/2018 2:08:14 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.15.4 |
| Added |
CVSS V2 |
|
(AV:L/AC:L/Au:N/C:C/I:N/A:N) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Added |
CWE |
|
CWE-200 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/103088 No Types Assigned |
http://www.securityfocus.com/bid/103088 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://lkml.org/lkml/2018/2/20/669 No Types Assigned |
https://lkml.org/lkml/2018/2/20/669 Mailing List, Third Party Advisory |
CVE Modified by MITRE -
2/22/2018 9:29:03 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/103088 [No Types Assigned] |