CVE-2018-8517 - Vulnerability Details

Description

A denial of service vulnerability exists when .NET Framework improperly handles special web requests, aka ".NET Framework Denial Of Service Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.

Published: 2018-12-12

Score: 7.5 High

EPSS: 14.0% Moderate

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

Microsoft .NET Framework

affected

Version	Status	Constraints
`3.5 on Windows 10 Version 1607 for 32-bit Systems`	affected	—
`3.5 on Windows 10 Version 1607 for x64-based Systems`	affected	—
`3.5 on Windows 10 Version 1703 for 32-bit Systems`	affected	—
`3.5 on Windows 10 Version 1703 for x64-based Systems`	affected	—
`3.5 on Windows 10 Version 1709 for 32-bit Systems`	affected	—
`3.5 on Windows 10 Version 1709 for x64-based Systems`	affected	—
`3.5 on Windows 10 Version 1803 for 32-bit Systems`	affected	—
`3.5 on Windows 10 Version 1803 for x64-based Systems`	affected	—
`3.5 on Windows 10 Version 1809 for 32-bit Systems`	affected	—
`3.5 on Windows 10 Version 1809 for x64-based Systems`	affected	—
`3.5 on Windows 8.1 for 32-bit systems`	affected	—
`3.5 on Windows 8.1 for x64-based systems`	affected	—
`3.5 on Windows Server 2012`	affected	—
`3.5 on Windows Server 2012 (Server Core installation)`	affected	—
`3.5 on Windows Server 2012 R2`	affected	—
`3.5 on Windows Server 2012 R2 (Server Core installation)`	affected	—
`3.5 on Windows Server 2016`	affected	—
`3.5 on Windows Server 2016 (Server Core installation)`	affected	—
`3.5 on Windows Server 2019`	affected	—
`3.5 on Windows Server 2019 (Server Core installation)`	affected	—
`3.5 on Windows Server, version 1709 (Server Core Installation)`	affected	—
`3.5 on Windows Server, version 1803 (Server Core Installation)`	affected	—
`3.5.1 on Windows 7 for 32-bit Systems Service Pack 1`	affected	—
`3.5.1 on Windows 7 for x64-based Systems Service Pack 1`	affected	—
`3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1`	affected	—
`3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1`	affected	—
`3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)`	affected	—
`4.5.2 on Windows 7 for 32-bit Systems Service Pack 1`	affected	—
`4.5.2 on Windows 7 for x64-based Systems Service Pack 1`	affected	—
`4.5.2 on Windows 8.1 for 32-bit systems`	affected	—
`4.5.2 on Windows 8.1 for x64-based systems`	affected	—
`4.5.2 on Windows RT 8.1`	affected	—
`4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2`	affected	—
`4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2`	affected	—
`4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1`	affected	—
`4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)`	affected	—
`4.5.2 on Windows Server 2012`	affected	—
`4.5.2 on Windows Server 2012 (Server Core installation)`	affected	—
`4.5.2 on Windows Server 2012 R2`	affected	—
`4.5.2 on Windows Server 2012 R2 (Server Core installation)`	affected	—
`4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2`	affected	—
`4.6 on Windows Server 2008 for x64-based Systems Service Pack 2`	affected	—
`4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems`	affected	—
`4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems`	affected	—
`4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016`	affected	—
`4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systems`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2`	affected	—
`4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)`	affected	—
`4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems`	affected	—
`4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems`	affected	—
`4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems`	affected	—
`4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation)`	affected	—
`4.7.2 on Windows 10 Version 1803 for 32-bit Systems`	affected	—
`4.7.2 on Windows 10 Version 1803 for x64-based Systems`	affected	—
`4.7.2 on Windows 10 Version 1809 for 32-bit Systems`	affected	—
`4.7.2 on Windows 10 Version 1809 for x64-based Systems`	affected	—
`4.7.2 on Windows Server 2019`	affected	—
`4.7.2 on Windows Server 2019 (Server Core installation)`	affected	—
`4.7.2 on Windows Server, version 1803 (Server Core Installation)`	affected	—
`4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems`	affected	—
`4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems`	affected	—

Configuration 1 [-]

AND

cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	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_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration 2 [-]

AND

cpe:2.3:a:microsoft:.net_framework:3.5:sp1:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1::::::

Configuration 4 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration 5 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

Configuration 6 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration 7 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration 8 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	cpe:2.3:o:microsoft:windows_10:1703:::::::*
	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration 9 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	cpe:2.3:o:microsoft:windows_10:1703:::::::*
	cpe:2.3:o:microsoft:windows_10:1709:::::::*
	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*

Configuration 10 [-]

AND

cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1607:::::::*
	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_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2018-20141	A denial of service vulnerability exists when .NET Framework improperly handles special web requests, aka ".NET Framework Denial Of Service Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.14028.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.securityfocus.com/bid/106075
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8517

History

No history.

Subscriptions

Microsoft .net Framework Windows 10 Windows 7 Windows 8.1 Windows Rt 8.1 Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2018-12-12T00:00:00.000Z

Updated: 2024-08-05T07:02:24.472Z

Reserved: 2018-03-14T00:00:00.000Z

Link: CVE-2018-8517

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-12-12T00:29:00.403

Modified: 2024-11-21T04:13:59.010

Link: CVE-2018-8517

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

Subscriptions

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