CVE-2023-35942CWE-416

Envoy's gRPC access log crash caused by the listener draining

Medium · published July 25, 2023

CVSS v3.1
6.5
EPSS
1%
Percentile
58.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00887 · 58.9th percentile
Weakness
CWE-416 · Use After Free
Published
2023-07-25T18:24Z
EPSS history
Timeline
  • 25 JUL 18:24Z
    Envoy's gRPC access log crash caused by the listener draining
    cvelistv5