CVE-2023-35942

Medium

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, gRPC access loggers using listener's global scope can cause a `use-after-free` crash when the listener is drained. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, disable gRPC access log or stop listener update.

SeverityMedium
CVSS6.5
Exploit probability—
ProductEnvoy
PublishedJul 25, 2023
First seenJul 25, 2023

How to fix

Update
  • envoyproxy envoy1.23.12, 1.24.10, 1.25.9, 1.26.4 or later

Affected products

ProductAffected versionsFixed in
envoyproxy envoy1.23.0 ≤ v < 1.23.12, 1.24.0 ≤ v < 1.24.10, 1.25.0 ≤ v < 1.25.9, 1.26.0 ≤ v < 1.26.41.23.12, 1.24.10, 1.25.9, 1.26.4

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