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

Synopsis:          Important: Red Hat OpenShift Service Mesh 2.0.7.1 security update
Advisory ID:       RHSA-2021:3272-01
Product:           Red Hat OpenShift Service Mesh
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3272
Issue date:        2021-08-25
CVE Names:         CVE-2021-32777 CVE-2021-32779 CVE-2021-32781 
                   CVE-2021-39155 CVE-2021-39156 
=====================================================================

1. Summary:

An update for servicemesh and servicemesh-proxy is now available for
OpenShift Service Mesh 2.0.

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. Relevant releases/architectures:

2.0 - ppc64le, s390x, x86_64

3. 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):

* envoyproxy/envoy: HTTP request with multiple value headers can bypass
authorization policies (CVE-2021-32777)

* envoyproxy/envoy: HTTP request with a URL fragment in the URI can bypass
authorization policies (CVE-2021-32779)

* envoyproxy/envoy: denial of service when using extensions that modify
request or response sizes (CVE-2021-32781)

* istio/istio: HTTP request can bypass authorization mechanisms due to case
insensitive host comparison (CVE-2021-39155)

* istio/istio: HTTP request with fragment in URI can bypass authorization
mechanisms (CVE-2021-39156)

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.

4. Solution:

The OpenShift Service Mesh Release Notes provide information on the
features and
known issues:

https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servi
cemesh-release-notes.html

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

1996915 - CVE-2021-39156 istio/istio: HTTP request with fragment in URI can bypass authorization mechanisms
1996929 - CVE-2021-39155 istio/istio: HTTP request can bypass authorization mechanisms due to case insensitive host comparison
1996933 - CVE-2021-32777 envoyproxy/envoy: HTTP request with multiple value headers can bypass authorization policies
1996934 - CVE-2021-32779 envoyproxy/envoy: HTTP request with a URL fragment in the URI can bypass authorization policies
1996935 - CVE-2021-32781 envoyproxy/envoy: denial of service when using extensions that modify request or response sizes

6. Package List:

2.0:

Source:
servicemesh-2.0.7-3.el8.src.rpm
servicemesh-proxy-2.0.7-3.el8.src.rpm

ppc64le:
servicemesh-2.0.7-3.el8.ppc64le.rpm
servicemesh-istioctl-2.0.7-3.el8.ppc64le.rpm
servicemesh-mixc-2.0.7-3.el8.ppc64le.rpm
servicemesh-mixs-2.0.7-3.el8.ppc64le.rpm
servicemesh-pilot-agent-2.0.7-3.el8.ppc64le.rpm
servicemesh-pilot-discovery-2.0.7-3.el8.ppc64le.rpm
servicemesh-proxy-2.0.7-3.el8.ppc64le.rpm

s390x:
servicemesh-2.0.7-3.el8.s390x.rpm
servicemesh-istioctl-2.0.7-3.el8.s390x.rpm
servicemesh-mixc-2.0.7-3.el8.s390x.rpm
servicemesh-mixs-2.0.7-3.el8.s390x.rpm
servicemesh-pilot-agent-2.0.7-3.el8.s390x.rpm
servicemesh-pilot-discovery-2.0.7-3.el8.s390x.rpm
servicemesh-proxy-2.0.7-3.el8.s390x.rpm

x86_64:
servicemesh-2.0.7-3.el8.x86_64.rpm
servicemesh-istioctl-2.0.7-3.el8.x86_64.rpm
servicemesh-mixc-2.0.7-3.el8.x86_64.rpm
servicemesh-mixs-2.0.7-3.el8.x86_64.rpm
servicemesh-pilot-agent-2.0.7-3.el8.x86_64.rpm
servicemesh-pilot-discovery-2.0.7-3.el8.x86_64.rpm
servicemesh-proxy-2.0.7-3.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-32777
https://access.redhat.com/security/cve/CVE-2021-32779
https://access.redhat.com/security/cve/CVE-2021-32781
https://access.redhat.com/security/cve/CVE-2021-39155
https://access.redhat.com/security/cve/CVE-2021-39156
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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