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

Synopsis:          Moderate: OpenShift Container Platform 4.4.3 haproxy security update
Advisory ID:       RHSA-2020:1936-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:1936
Issue date:        2020-05-04
CVE Names:         CVE-2019-18277 CVE-2019-19330 CVE-2020-11100 
=====================================================================

1. Summary:

An update for haproxy is now available for Red Hat OpenShift Container
Platform 4.4.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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:

Red Hat OpenShift Container Platform 4.4 - x86_64

3. Description:

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.

Security Fix(es):

* haproxy: malformed HTTP/2 requests could lead to out-of-bounds writes
(CVE-2020-11100)

* haproxy: HTTP request smuggling issue with transfer-encoding header
containing an obfuscated "chunked" value (CVE-2019-18277)

* haproxy: HTTP/2 implementation was vulnerable to intermediary
encapsulation attacks (CVE-2019-19330)

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:

For OpenShift Container Platform 4.4 see the following documentation, which
will be updated shortly for release 4.4.3, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.4/release_notes/ocp-4-4-rel
ease-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.4/updating/updating-cluster
- -cli.html.

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

1759697 - CVE-2019-18277 haproxy: HTTP request smuggling issue with transfer-encoding header containing an obfuscated "chunked" value
1777584 - CVE-2019-19330 haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks
1819111 - CVE-2020-11100 haproxy: malformed HTTP/2 requests can lead to out-of-bounds writes

6. Package List:

Red Hat OpenShift Container Platform 4.4:

Source:
haproxy-2.0.13-3.el7.src.rpm

x86_64:
haproxy-debuginfo-2.0.13-3.el7.x86_64.rpm
haproxy20-2.0.13-3.el7.x86_64.rpm

Red Hat OpenShift Container Platform 4.4:

Source:
haproxy-2.0.13-3.el8.src.rpm

x86_64:
haproxy-debugsource-2.0.13-3.el8.x86_64.rpm
haproxy20-2.0.13-3.el8.x86_64.rpm
haproxy20-debuginfo-2.0.13-3.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-2019-18277
https://access.redhat.com/security/cve/CVE-2019-19330
https://access.redhat.com/security/cve/CVE-2020-11100
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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