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 before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
Source:
MITRE
Description Last Modified:
03/11/2018
View Analysis Description
Analysis Description
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
Source:
MITRE
Description Last Modified:
03/11/2018
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
4.7 MEDIUM
Vector:
AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
(V3 legend)
Impact Score:
3.6
Exploitability Score:
1.0
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
1.9 LOW
Vector:
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
3.4
Access Vector (AV):
Local
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
Partial
Additional Information:
Allows disruption of service
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Change History
3 change records found
- show changes
CVE Modified by MITRE -
5/2/2018 9:29:37 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://www.debian.org/security/2018/dsa-4188 [No Types Assigned] |
Initial Analysis -
4/12/2018 10:18:45 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.15 |
| Added |
CVSS V2 |
|
(AV:L/AC:M/Au:N/C:N/I:N/A:P) |
| Added |
CVSS V3 |
|
AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Added |
CWE |
|
CWE-362 |
| Changed |
Reference Type |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f No Types Assigned |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Vendor Advisory |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/103353 No Types Assigned |
http://www.securityfocus.com/bid/103353 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f No Types Assigned |
https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917f Patch, Third Party Advisory |
CVE Modified by MITRE -
3/13/2018 9:29:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/103353 [No Types Assigned] |