CVE-2023-35942
MEDIUM6.5EPSS 0.02%Envoy's gRPC access log crash caused by the listener draining
Published: 3/6/2024Modified: 10/15/2025
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.
Affected packages (1)
- Bitnami/envoy>= 1.23.0, < 1.23.12, >= 1.24.0, < 1.24.10, >= 1.25.0, < 1.25.9, >= 1.26.0, < 1.26.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |