PT-2025-36580 · Bitnami · Envoy

Publicado 2025-09-04 · Atualizado 2025-09-04

OSV

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. Versions 1.34.0 through 1.34.4 and 1.35.0 contain a use-after-free (UAF) vulnerability in the DNS cache, causing abnormal process termination. The vulnerability is in Envoy's Dynamic Forward Proxy implementation, occurring when a completion callback for a DNS resolution triggers new DNS resolutions or removes existing pending resolutions. This condition may occur when the following conditions are met: dynamic Forwarding Filter is enabled, the envoy.reloadable features.dfp cluster resolves hosts runtime flag is enabled, and the Host header is modified between the Dynamic Forwarding Filter and Router filters. This issue is resolved in versions 1.34.5 and 1.35.1. To work around this issue, set the envoy.reloadable features.dfp cluster resolves hosts runtime flag to false.

Identificadores relacionados

BIT-ENVOY-2025-54588

Produtos afetados

Envoy

Referências · 5

• https://github.com/envoyproxy/envoy/releases/tag/v1.35.1 · Nota
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-g9vw-6pvx-7gmw · Nota
• https://github.com/envoyproxy/envoy/releases/tag/v1.34.5 · Nota
• https://osv.dev/vulnerability/BIT-envoy-2025-54588 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2025-54588 · Nota de Segurança