Current Description
A denial of service vulnerability exists when SymCrypt improperly handles a specially crafted digital signature.An attacker could exploit the vulnerability by creating a specially crafted connection or message.The security update addresses the vulnerability by correcting the way SymCrypt handles digital signatures., aka 'SymCrypt Denial of Service Vulnerability'.
Source:
MITRE
View Analysis Description
Analysis Description
A denial of service vulnerability exists when SymCrypt improperly handles a specially crafted digital signature.An attacker could exploit the vulnerability by creating a specially crafted connection or message.The security update addresses the vulnerability by correcting the way SymCrypt handles digital signatures., aka 'SymCrypt Denial of Service Vulnerability'.
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.5 HIGH
Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
(V3 legend)
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
Access Vector (AV):
Network
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
Partial
Additional Information:
Allows disruption of service
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Technical Details
Vulnerability Type
(View All)
- Improper Input Validation (CWE-20)
Change History
1 change record found
- show changes
Initial Analysis -
7/22/2019 1:27:42 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:N/C:N/I:N/A:P) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Added |
CWE |
|
CWE-20 |
| Changed |
Reference Type |
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0865 No Types Assigned |
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0865 Patch, Vendor Advisory |