Vulnerability · Published Aug 12, 2021 · Assigned by microsoft
CVE-2021-34485.NET Core and Visual Studio Information Disclosure Vulnerability
Medium 5.0
In plain English
A medium-severity information exposure in Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 81% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)2.1%top 18.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
.NET Core and Visual Studio Information Disclosure Vulnerability
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| NuGet | microsoft.netcore.app | 2.1.29 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-arm | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-arm | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-arm64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-musl-x64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-musl-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.linux-x64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.linux-arm | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.linux-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.linux-musl-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.linux-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.aot.linux-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.aot.linux-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.aot.osx-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.linux-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.linux-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.llvm.osx-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.mono.osx-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.osx-x64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.osx-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.rhel.6-x64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-arm | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-arm | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 5.0.9 | GHSA-vgwq-hfqc-58wv |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 3.1.18 | GHSA-vgwq-hfqc-58wv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 5.0 | 5.0.0 – before 5.0.9 |
| Microsoft | .NET Core 2.1 | 2.1 – before 2.1.30 |
| Microsoft | .NET Core 3.1 | 3.1 – before 3.1.18 |
| Microsoft | Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | 15.9.0 – before 15.9.38 |
| Microsoft | Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9) | 16.10.0 – before 16.10.5 |
| Microsoft | Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | 16.0 – before 16.4.25 |
| Microsoft | Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | 16.0.0 – before 16.7.18 |
| Microsoft | Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | 15.0.0 – before 16.9.10 |
| Microsoft | PowerShell 7.0 | 7.0.0 – before 7.0.7 |
| Microsoft | PowerShell 7.1 | 7.1.0 – before 7.1.4 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- .NET Core and Visual Studio Information Disclosure Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485 x_refsource_MISC, x_transferred