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

Synopsis:          Important: Red Hat OpenShift Service Mesh 2.2.9  security update
Advisory ID:       RHSA-2023:4623-01
Product:           Red Hat OpenShift Service Mesh
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4623
Issue date:        2023-08-11
CVE Names:         CVE-2023-27487 CVE-2023-27488 CVE-2023-27491 
                   CVE-2023-27492 CVE-2023-27493 CVE-2023-27496 
=====================================================================

1. Summary:

Red Hat OpenShift Service Mesh 2.2.9

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 OpenShift Container
Platform installation.

Security Fix(es):

* envoy: Client may fake the header `x-envoy-original-path`
(CVE-2023-27487)

* envoy: envoy doesn't escape HTTP header values (CVE-2023-27493)

* envoy: gRPC client produces invalid protobuf when an HTTP header with
non-UTF8 value is received (CVE-2023-27488)

* envoy: Envoy forwards invalid HTTP/2 and HTTP/3 downstream
(CVE-2023-27491)

* envoy:  Crash when a large request body is processed in Lua filter
(CVE-2023-27492)

* envoy: Crash when a redirect url without a state param is received in the
oauth filter (CVE-2023-27496)

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/):

2179135 - CVE-2023-27487 envoy: Client may fake the header `x-envoy-original-path`
2179138 - CVE-2023-27491 envoy: Envoy forwards invalid HTTP/2 and HTTP/3 downstream
2179139 - CVE-2023-27492 envoy:  Crash when a large request body is processed in Lua filter
2182155 - CVE-2023-27496 envoy: Crash when a redirect url without a state param is received in the oauth filter
2182156 - CVE-2023-27488 envoy: gRPC client produces invalid protobuf when an HTTP header with non-UTF8 value is received
2182158 - CVE-2023-27493 envoy: envoy doesn't escape HTTP header values

5. References:

https://access.redhat.com/security/cve/CVE-2023-27487
https://access.redhat.com/security/cve/CVE-2023-27488
https://access.redhat.com/security/cve/CVE-2023-27491
https://access.redhat.com/security/cve/CVE-2023-27492
https://access.redhat.com/security/cve/CVE-2023-27493
https://access.redhat.com/security/cve/CVE-2023-27496
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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