high7.5
CVE-2017-0247
A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests.
Impact
A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Asp.Net Model View Controller | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Localization | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Razor | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Razor.Host | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Taghelpers | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Viewfeatures | Versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/aspnet/Announcements/issues/239
- https://technet.microsoft.com/en-us/library/security/4021279.aspx
- https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS
- https://github.com/aspnet/Announcements/issues/239
- https://technet.microsoft.com/en-us/library/security/4021279.aspx
- https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS