CVE-2021-39204
Excessive CPU usage
Impact
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)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/pomerium/pomerium | < 0.14.8 | 0.14.8 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Envoyproxy | Envoy | through 1.16.4 from 1.17.0 before 1.17.4 from 1.18.0 before 1.18.4 Version 1.19.0 |
| Pomerium | Pomerium | before 0.14.8 Version 0.15.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc
- https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r
- https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ
- https://github.com/advisories/GHSA-5wjf-62hw-q78r
- https://nvd.nist.gov/vuln/detail/CVE-2021-39204