Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
### 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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-38171US | — | — | ||
Microsoft QUIC Denial of Service Vulnerability | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/microsoft/msquicPACKAGE
- https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343WEB
- https://github.com/microsoft/msquic/security/advisories/GHSA-xh5m-8qqp-c5x7WEB
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171WEB
- https://nvd.nist.gov/vuln/detail/CVE-2023-38171ADVISORY
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