high7.5
CVE-2021-43826
Envoy is an open source edge and service proxy, designed for cloud-native applications.
Impact
Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Envoyproxy | Envoy | before 1.18.6 from 1.19.0 before 1.19.3 from 1.20.0 before 1.20.2 from 1.21.0 before 1.21.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf
- https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf