Excessive CPU usage
Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. ### Impact This can result in a DoS condition. ### Patches Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched. ### Workarounds N/A ### References [envoy GSA](https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc) [envoy CVE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32778) [envoy announcement](https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ) ### For more information If you have any questions or comments about this advisory: * Open an issue in [pomerium/pomerium](https://github.com/pomerium/pomerium/issues) * Email us at [security@pomerium.com](mailto:security@pomerium.com)
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-39204US | medium5.0 | — | ||
Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chccWEB
- https://github.com/pomerium/pomeriumPACKAGE
- https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78rWEB
- https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJWEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-39204ADVISORY
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