.NET Framework
CVE-2018-8517 — .NET Framework Denial Of Service Vulnerability
Executive Summary
A denial of service vulnerability exists when .NET Framework improperly handles special web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Framework application. The update addresses the vulnerability by correcting how the .NET Framework web application handles web requests.
Overview
Important
MS Severity
Not Exploited
MS Exploit Status
Exploitation Unlikely
MS Exploit Likelihood
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
35 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems | 4471327 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems | 4471327 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for 32-bit Systems | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for x64-based Systems | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems 4470630 (Monthly Rollup) 4470602 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems 4470630 (Monthly Rollup) 4470602 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 4470629 (Monthly Rollup) 4470601 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 4470629 (Monthly Rollup) 4470601 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 4470630 (Monthly Rollup) 4470602 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 4470630 (Monthly Rollup) 4470602 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2016 | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows Server 2019 | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 3.5 on Windows Server 2019 (Server Core installation) | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation) | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation) | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for 32-bit Systems Service Pack 2 4471102 (Monthly Rollup) 4470633 (Security Only) Important Denial of Service 4457921; 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4471102 (Monthly Rollup) 4470633 (Security Only) Important Denial of Service 4457921; 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for x64-based Systems Service Pack 2 4471102 (Monthly Rollup) 4470633 (Security Only) Important Denial of Service 4457921; 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Important Denial of Service 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Important Denial of Service 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Important Denial of Service 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Important Denial of Service 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470641 (Monthly Rollup) 4470600 (Security Only) Important Denial of Service 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems 4470622 (Monthly Rollup) 4470491 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems 4470622 (Monthly Rollup) 4470491 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows RT 8.1 | 4470622 (Monthly Rollup) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470637 (Monthly Rollup) 4470493 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 4470623 (Monthly Rollup) 4470492 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) 4470623 (Monthly Rollup) 4470492 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 4470622 (Monthly Rollup) 4470491 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) 4470622 (Monthly Rollup) 4470491 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 4470637 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 4470640 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) | 4471321 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 4470640 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 4470640 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems 4470630 (Monthly Rollup) 4470499 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for x64-based systems 4470639 (Monthly Rollup) 4470499 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1 | 4470639 (Monthly Rollup) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470640 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470640 (Monthly Rollup) 4470500 (Security Only) Important Denial of Service 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 4470638 (Monthly Rollup) 4470498 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) 4470638 (Monthly Rollup) 4470498 (Security Only) Important Denial of Service 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 4470639 (Monthly Rollup) 4470499 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) 4470639 (Monthly Rollup) 4470499 (Security Only) Important Denial of Service 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation) | 4471329 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for 32-bit Systems | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for x64-based Systems | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for 32-bit Systems | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for x64-based Systems | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server 2019 | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server 2019 (Server Core installation) | 4470502 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server, version 1803 (Server Core Installation) | 4471324 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems | 4471327 (Security Update) |
Important | Denial of Service | Yes |
| Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems | 4471327 (Security Update) |
Important | Denial of Service | Yes |
Patches
7 patches
| Article | Type | Restart |
|---|---|---|
4471321 |
Security Update | Yes |
4471327 |
Security Update | Yes |
4471329 |
Security Update | Yes |
4471324 |
Security Update | Yes |
4470502 |
Security Update | Maybe |
4470622 |
Monthly Rollup | Maybe |
4470639 |
Monthly Rollup | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
None
References
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