Use After Free Affecting servicemesh-proxy package, versions <0:2.0.9-3.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.11% (44th percentile)

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  • Snyk IDSNYK-RHEL8-SERVICEMESHPROXY-4401622
  • published26 Mar 2023
  • disclosed22 Feb 2022

Introduced: 22 Feb 2022

CVE-2021-43826  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 servicemesh-proxy to version 0:2.0.9-3.el8 or higher.
This issue was patched in RHSA-2022:1276.

NVD Description

Note: Versions mentioned in the description apply only to the upstream servicemesh-proxy package and not the servicemesh-proxy package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:upstream tunneling &lt;envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config&gt; and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.

CVSS Scores

version 3.1