CVE-2022-21655 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/envoyproxy/envoy/security/advisories/GHSA-7r5p-7fmh-jxpg https://github.com/envoyproxy/envoy/commit/177d608155ba8b11598b9bbf8240e90d8c350682

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5