microsoft/msquic · Security
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
- GHSA ID
- GHSA-xh5m-8qqp-c5x7
- CVE ID
- CVE-2023-38171
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
CWEs
- CWE-400 · Uncontrolled Resource Consumption
- CWE-476 · NULL Pointer Dereference
References
- 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 ↗
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38171 ↗
- https://github.com/advisories/GHSA-xh5m-8qqp-c5x7 ↗