HTTP Request Smuggling Affecting servicemesh-proxy package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-RHEL8-SERVICEMESHPROXY-5412770
  • published5 Apr 2023
  • disclosed4 Apr 2023

Introduced: 4 Apr 2023

CVE-2023-27493  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 servicemesh-proxy.

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. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, Envoy does not sanitize or escape request properties when generating request headers. This can lead to characters that are illegal in header values to be sent to the upstream service. In the worst case, it can cause upstream service to interpret the original request as two pipelined requests, possibly bypassing the intent of Envoy’s security policy. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. As a workaround, disable adding request headers based on the downstream request properties, such as downstream certificate properties.

CVSS Scores

version 3.1