7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
45.5%
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET Core 3.1, .NET 6.0., and .NET 7.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A remote code execution vulnerability exists in .NET Core 3.1, .NET 6.0, and .NET 7.0, where a malicious actor could cause a user to run arbitrary code as a result of parsing maliciously crafted xps files.
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/242
Microsoft has not identified any mitigating factors for this vulnerability.
If the application does not utilize WinForms or WPF, it is not affected by this vulnerability.
Applications targeting Mac, Linux, Android, iOS, and other non-Windows platforms are not affected by this vulnerability.
If your application uses the following package versions, ensure you update to the latest version of .NET.
Package name | Affected version | Patched version |
---|---|---|
Microsoft.WindowsDesktop.App.Runtime.win-x64 | >= 3.1.0, <= 3.1.31 | 3.1.32 |
Microsoft.WindowsDesktop.App.Runtime.win-x86 | >= 3.1.0, <= 3.1.31 | 3.1.32 |
Package name | Affected version | Patched version |
---|---|---|
Microsoft.WindowsDesktop.App.Runtime.win-arm64 | >= 6.0.0, <= 6.0.11 | 6.0.12 |
Microsoft.WindowsDesktop.App.Runtime.win-x64 | >= 6.0.0, <= 6.0.11 | 6.0.12 |
Microsoft.WindowsDesktop.App.Runtime.win-x86 | >= 6.0.0, <= 6.0.11 | 6.0.12 |
Package name | Affected version | Patched version |
---|---|---|
Microsoft.WindowsDesktop.App.Runtime.win-arm64 | >= 7.0.0, <= 7.0.0 | 7.0.1 |
Microsoft.WindowsDesktop.App.Runtime.win-x64 | >= 7.0.0, <= 7.0.0 | 7.0.1 |
Microsoft.WindowsDesktop.App.Runtime.win-x86 | >= 7.0.0, <= 7.0.0 | 7.0.1 |
If you have a runtime or SDK with a version listed, or an affected package listed in affected software, youβre exposed to the vulnerability.
dotnet --info
command. You will see output like the following;.NET Core SDK (reflecting any global.json):
Version: 6.0.300
Commit: 8473146e7d
Runtime Environment:
OS Name: Windows
OS Version: 10.0.18363
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\6.0.300\
Host (useful for support):
Version: 6.0.5
Commit: 8473146e7d
.NET Core SDKs installed:
6.0.300 [C:\Program Files\dotnet\sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download
.NET 7.0, .NET 6.0 and .NET Core 3.1 updates are also available from Microsoft Update. To access this either type βCheck for updatesβ in your Windows search, or open Settings, choose Update & Security and then click Check for Updates.
Once you have installed the updated runtime or SDK, restart your apps for the update to take effect.
Additionally, if youβve deployed self-contained applications targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.
Eleftherios Panos with Nettitude
Nick Landers with NetSPI
If you have found a potential security issue in .NET 7.0, .NET 6.0 or .NET Core 3.1, please email details to [email protected]. Reports may qualify for the Microsoft .NET Core & .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at <https://aka.ms/corebounty>.
You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime and https://github.com/dotnet/wpf/. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.
The information provided in this advisory is provided βas isβ without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
github.com/advisories/GHSA-2c7v-qcjp-4mg2
github.com/dotnet/announcements/issues/242
github.com/dotnet/wpf/commit/5f4c0f7763a06b024c8a517616e0fc0194e997a4
github.com/dotnet/wpf/commit/7b0be4d41c33ce8525d8160bf8869cac10f8a8cd
github.com/dotnet/wpf/commit/c08825a9889e6c798fe95ed5ec1f6a9f517ab5a0
github.com/dotnet/wpf/security/advisories/GHSA-2c7v-qcjp-4mg2
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41089
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.4 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
45.5%