Headline
CVE-2022-21655: Build software better, together
Envoy is an open source edge and service proxy, designed for cloud-native applications. The envoy common router will segfault if an internal redirect selects a route configured with direct response or redirect actions. This will result in a denial of service. As a workaround turn off internal redirects if direct response entries are configured on the same listener.
common router: envoy will segfault if route selected in result of internal redirect is direct_response
CVSS Score 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, High
Impact
Denial of Service (Crash)
Patches****Workarounds
Turn off internal redirects if direct response entries are configured on the same listener.
References
https://blog.envoyproxy.io
https://github.com/envoyproxy/envoy/releases
For more information
Open an issue in Envoy repo
Email us at envoy-security