Описание
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
An integer overflow condition was found in dotnet and dotnet3.1's BinaryReader Read7BitEncodedInt() method. This method is used by BinaryReader's ReadString() method, and given a certain input, and cause a denial of service to dotnet applications using BinaryReader. The exploitation of this flaw depends on the application but does not inherently require the attacker to be authenticated or have any specific privileges. An attacker could exploit this flaw remotely via the internet by sending crafted data to a dotnet application that is passed into Read7BitEncodedInt(), resulting in a denial of service when the output is used by ReadString().
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 8 | dotnet3.0 | Not affected | ||
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21 | Fixed | RHSA-2020:2146 | 13.05.2020 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21-dotnet | Fixed | RHSA-2020:2146 | 13.05.2020 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21 | Fixed | RHSA-2020:2476 | 10.06.2020 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21-dotnet | Fixed | RHSA-2020:2476 | 10.06.2020 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet31-dotnet | Fixed | RHSA-2020:2249 | 21.05.2020 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet31-dotnet | Fixed | RHSA-2020:2475 | 10.06.2020 |
| Red Hat Enterprise Linux 8 | dotnet | Fixed | RHSA-2020:2143 | 13.05.2020 |
| Red Hat Enterprise Linux 8 | dotnet3.1 | Fixed | RHSA-2020:2250 | 21.05.2020 |
| Red Hat Enterprise Linux 8 | dotnet3.1 | Fixed | RHSA-2020:2450 | 09.06.2020 |
Показывать по
Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
.NET Core & .NET Framework Denial of Service Vulnerability
ELSA-2020-2471: .NET Core on Red Hat Enterprise Linux 8 security update (IMPORTANT)
ELSA-2020-2450: .NET Core 3.1 on Red Hat Enterprise Linux 8 security update (IMPORTANT)
EPSS
7.5 High
CVSS3