high7.5
CVE-2023-38171
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
Impact
### Impact The MsQuic server application or process will crash, resulting in a denial of service. ### Patches The following patch was made: - Don't Allow Version Negotiation Packets for Server Connections - https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343 ### Workarounds Beyond upgrading to the patched versions, there is no other workaround. You must upgrade or disable MsQuic functionality.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Microsoft.Native.Quic.MsQuic.Schannel | < 2.2.3 | 2.2.3 |
| nuget | Microsoft.Native.Quic.MsQuic.OpenSSL | < 2.2.3 | 2.2.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | .Net | from 7.0.0 before 7.0.12 |
| Microsoft | Visual Studio 2022 | from 17.2.0 before 17.2.20 from 17.4.0 before 17.4.12 from 17.6.0 before 17.6.8 from 17.7.0 before 17.7.5 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.2428 |
| Microsoft | Windows Server 2022 | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171
- https://github.com/advisories/GHSA-xh5m-8qqp-c5x7
- https://github.com/microsoft/msquic/security/advisories/GHSA-xh5m-8qqp-c5x7
- https://nvd.nist.gov/vuln/detail/CVE-2023-38171
- https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343