s2n-quic potential denial of service vulnerability when receiving empty UDP packets
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### Impact An issue in s2n-quic results in the endpoint shutting down after receiving an empty UDP packet on a connection. No AWS services are affected by this issue and customers of AWS services do not need to take action. Applications using s2n-quic should upgrade their application to the most recent release of s2n-quic. Impacted version: s2n-quic v1.22.0. ### Patches The patch is included in s2n-quic [v1.23.0](https://github.com/aws/s2n-quic/releases/tag/v1.23.0). If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [[email protected]](mailto:[email protected]). Please do not create a public GitHub issue.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | s2n-quic (crates.io) | 1.22.0 to before 1.23.0 | 1.23.0 | Patch available | GHSA-hxq4-mx37-fqvg |
- s2n-quic (crates.io) Vendor— Affected 1.22.0 to before 1.23.0 Fixed in 1.23.0 Patch available GHSA-hxq4-mx37-fqvg
Remediation
- Fix · GHSA-hxq4-mx37-fqvg s2n-quic (crates.io) Fixed in 1.23.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-hxq4-mx37-fqvg
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences