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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.
A spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
Improper Certificate Validation
Affected range
>=4.3.0 <4.3.1
Fixed version
4.3.1
Description
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
Microsoft.NETCore.App1.1.0 (nuget)
pkg:nuget/Microsoft.NETCore.App@1.1.0
Improper Input Validation
Affected range
>=1.1.0 <1.1.4
Fixed version
1.1.4
CVSS Score
7.5
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7 allow an attacker to send specially crafted requests to a .NET web application, resulting in denial of service, aka .NET Denial of Service Vulnerability.
Improper Certificate Validation
Affected range
>=1.0.0 <2.0.3
Fixed version
2.0.3
CVSS Score
7.5
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability".
System.Net.Http4.3.0 (nuget)
pkg:nuget/System.Net.Http@4.3.0
Exposure of Sensitive Information to an Unauthorized Actor
Affected range
<4.3.4
Fixed version
4.3.4
CVSS Score
7.5
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
An information disclosure vulnerability exists in .NET Core when authentication information is inadvertently exposed in a redirect, aka ".NET Core Information Disclosure Vulnerability." This affects .NET Core 2.1, .NET Core 1.0, .NET Core 1.1, PowerShell Core 6.0.
System.Text.RegularExpressions4.3.0 (nuget)
pkg:nuget/System.Text.RegularExpressions@4.3.0
Inefficient Regular Expression Complexity
Affected range
>=4.3.0 <4.3.1
Fixed version
4.3.1
CVSS Score
7.5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Microsoft.NETCore.Jit1.1.0 (nuget)
pkg:nuget/Microsoft.NETCore.Jit@1.1.0
Affected range
>=1.1.0 <1.1.7
Fixed version
1.1.7
CVSS Score
7.5
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
.NET Core 1.0, .NET Core 1.1, NET Core 2.0 and PowerShell Core 6.0.0 allow a denial of Service vulnerability due to how specially crafted requests are handled, aka ".NET Core Denial of Service Vulnerability".
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