National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-0820 Detail

Current Description

A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.

Source:  MITRE
View Analysis Description

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 (V3.0 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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:1259
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820 Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_core:1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_core:2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_core:2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
     Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 9 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 10 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 11 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 12 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 13 ( hide )
 cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-0820
NVD Published Date:
05/16/2019
NVD Last Modified:
05/22/2019