GHSA-rp2p-6cmp-jxj9

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in the .NET runtime cryptography layer (CryptoNative_GetX509NameInfo). This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A denial of service vulnerability exists in the .NET 8, .NET 9, and .NET 10 runtime when parsing X.509 certificates. A specially crafted certificate could allow an attacker to cause a denial of service.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/TBD

CVSS Details

• Version: 3.1
• Severity: High
• Score: 7.5
• Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
• Weakness: CWE-843 (Access of Resource Using Incompatible Type ('Type Confusion'))

Affected Platforms

• Platforms: Linux, macOS
• Architectures: All

<a name="affected-packages"></a>Affected Packages

The vulnerability affects any Microsoft .NET project if it uses any of affected package versions listed below

<a name=".NET 10.0"></a>.NET 10.0

Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- Microsoft.NetCore.App.Runtime.linux-arm | >= 10.0.0, <= 10.0.9 | 10.0.10 Microsoft.NetCore.App.Runtime.linux-arm64 | >= 10.0.0, <= 10.0.9 | 10.0.10 Microsoft.NetCore.App.Runtime.linux-musl-arm | >= 10.0.0, <= 10.0.9 | 10.0.10 Microsoft.NetCore.App.Runtime.linux-musl-arm64 | >= 10.0.0, <= 10.0.9 | 10.0.10...