Skip to content
CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-43824

Null pointer dereference in envoy

Description

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

envoyproxy envoy

  • >= 1.20.0, < 1.20.2affected
  • >= 1.19.0, < 1.19.3affected
  • < 1.18.6affected
  • >= 1.21.0, < 1.21.1affected

References