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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: Red Hat OpenShift Service Mesh Containers for 2.3.6 security update
Advisory ID:       RHSA-2023:4624-01
Product:           Red Hat OpenShift Service Mesh
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4624
Issue date:        2023-08-11
CVE Names:         CVE-2023-2828 CVE-2023-35941 CVE-2023-35942 
                   CVE-2023-35943 CVE-2023-35944 CVE-2023-35945 
=====================================================================

1. Summary:

Red Hat OpenShift Service Mesh 2.3.6 Containers

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Description:

Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio
service mesh project, tailored for installation into an on-premise
OpenShift Container Platform installation.

Security Fix(es):

* envoy: OAuth2 credentials exploit with permanent validity
(CVE-2023-35941)

* envoy: Incorrect handling of HTTP requests and responses with mixed case
schemes (CVE-2023-35944)

* envoy: HTTP/2 memory leak in nghttp2 codec (CVE-2023-35945)

* envoy: gRPC access log crash caused by the listener draining
(CVE-2023-35942)

* envoy: CORS filter segfault when origin header is removed
(CVE-2023-35943)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

3. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

4. Bugs fixed (https://bugzilla.redhat.com/):

2217977 - CVE-2023-35941 envoy: OAuth2 credentials exploit with permanent validity
2217978 - CVE-2023-35942 envoy: gRPC access log crash caused by the listener draining
2217983 - CVE-2023-35945 envoy: HTTP/2 memory leak in nghttp2 codec
2217985 - CVE-2023-35944 envoy: Incorrect handling of HTTP requests and responses with mixed case schemes
2217987 - CVE-2023-35943 envoy: CORS filter segfault when origin header is removed

5. References:

https://access.redhat.com/security/cve/CVE-2023-2828
https://access.redhat.com/security/cve/CVE-2023-35941
https://access.redhat.com/security/cve/CVE-2023-35942
https://access.redhat.com/security/cve/CVE-2023-35943
https://access.redhat.com/security/cve/CVE-2023-35944
https://access.redhat.com/security/cve/CVE-2023-35945
https://access.redhat.com/security/updates/classification/#important

6. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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