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ALSA-2023:4057 — Important: .NET 7.0 security, bug fix, and enhancement update

Affected: AlmaLinux:9: aspnetcore-runtime-7.0, AlmaLinux:9: aspnetcore-targeting-pack-7.0, AlmaLinux:9: dotnet-apphost-pack-7.0, AlmaLinux:9: dotnet-host, AlmaLinux:9: dotnet-hostfxr-7.0, AlmaLinux:9: dotnet-runtime-7.0, AlmaLinux:9: dotnet-sdk-7.0, AlmaLinux:9: dotnet-sdk-7.0-source-built-artifacts, AlmaLinux:9: dotnet-targeting-pack-7.0, AlmaLinux:9: dotnet-templates-7.0 and 1 more

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

The following packages have been upgraded to a later upstream version: dotnet7.0 (SDK 7.0.109, Runtime 7.0.9). (BZ#2219634)

Security Fix(es):

* dotnet: race condition in Core SignInManager<TUser> PasswordSignInAsync method (CVE-2023-33170)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2023-03789

BIT-dotnet-2023-33170 — ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Affected: Bitnami: dotnet

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

certfr-2023-avi-0534 — De multiples vulnérabilités ont été corrigées dans Microsoft .Net. Elles permettent à un attaquant de provoquer un cont…

certfr-2023-avi-0534

CLEANSTART-2025-KP84277 — ASP

Affected: CleanStart: dotnet6-build, CleanStart: dotnet6-runtime

CVE-2023-33170 affects multiple packages. ASP. See references for individual vulnerability details.

EUVD-2026-322533

fkie_cve-2023-33170

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

GHSA-25c8-p796-jg6r — Microsoft Security Advisory CVE-2023-33170: .NET Security Feature Bypass Vulnerability

Affected: NuGet: Microsoft.AspNetCore.Identity, NuGet: Microsoft.AspNet.Identity.Owin, NuGet: Microsoft.AspNetCore.App.Runtime.linux-arm, NuGet: Microsoft.AspNetCore.App.Runtime.linux-arm64, NuGet: Microsoft.AspNetCore.App.Runtime.linux-musl-arm, NuGet: Microsoft.AspNetCore.App.Runtime.linux-musl-arm64, NuGet: Microsoft.AspNetCore.App.Runtime.linux-x64, NuGet: Microsoft.AspNetCore.App.Runtime.osx-x64, NuGet: Microsoft.AspNetCore.App.Runtime.win-arm, NuGet: Microsoft.AspNetCore.App.Runtime.win-arm64 and 4 more

# Microsoft Security Advisory CVE-2023-33170: .NET Security Feature Bypass Vulnerability

## Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 2.1 and above. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exist in ASP.NET Core applications where account lockout maximum failed attempts may not be immediately updated, allowing an attacker to try more passwords.

## Discussion

Discussion for this issue can be found at https://github.com/dotnet/aspnetcore/issues/49334

### Mitigation factors

Microsoft has not identified any mitigating factors for this vulnerability.

## Affected software

* Any ASP.NET 7.0 application running on .NET 7.0.8 or earlier. * Any ASP.NET 6.0 application running on .NET 6.0.19 or earlier. * Any ASP.NET Core 2.1 application consuming the package Microsoft.AspNetCore.Identity version 2.1.31 or earlier.

If your application uses the following package versions, ensure you update to the latest version of .NET.

### ASP.NET Core 2.1

Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [ Microsoft.AspNetCore.Identity](https://www.nuget.org/packages/Microsoft.AspNetCore.Identity/2.1.39) | <=2.1.39 | 2.1.39

### Microsoft.AspNet.Identity.Owin Package name | Affected version | Patched version ------------ | ---------------- | ------…

gsd-2023-33170

ICSA-24-165-04 — Siemens ST7 ScadaConnect

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault. An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked. A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy` argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()` function. Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent…

msrc_CVE-2023-33170 — ASP.NET and Visual Studio Security Feature Bypass Vulnerability

msrc_CVE-2023-33170

RHSA-2023:4057 — Red Hat Security Advisory: .NET 7.0 security, bug fix, and enhancement update

dotnet: race condition in Core SignInManager<TUser> PasswordSignInAsync method

RHSA-2023:4061 — Red Hat Security Advisory: .NET 6.0 security, bug fix, and enhancement update

dotnet: race condition in Core SignInManager<TUser> PasswordSignInAsync method

UBUNTU-CVE-2023-33170

Affected: Ubuntu:22.04:LTS: dotnet6, Ubuntu:22.04:LTS: dotnet7

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

WID-SEC-W-2023-1722 — Microsoft Developer Tools: Mehrere Schwachstellen

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio 2022, Microsoft Visual Studio Code und Microsoft .NET Framework ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode auszuführen, Sicherheitsvorkehrungen zu umgehen oder Dateien zu manipulieren.