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

Synopsis:          Moderate: buildah security and bug fix update
Advisory ID:       RHSA-2022:8008-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:8008
Issue date:        2022-11-15
CVE Names:         CVE-2021-20291 CVE-2021-33195 CVE-2021-33197
                   CVE-2021-33198 CVE-2022-2989 CVE-2022-2990
                   CVE-2022-27191
====================================================================
1. Summary:

An update for buildah is now available for Red Hat Enterprise Linux 9.

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 Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64

3. Description:

The buildah package provides a tool for facilitating building OCI container
images. Among other things, buildah enables you to: Create a working
container, either from scratch or using an image as a starting point;
Create an image, either from a working container or using the instructions
in a Dockerfile; Build both Docker and OCI images.

Security Fix(es):

* containers/storage: DoS via malicious image (CVE-2021-20291)

* golang: net: lookup functions may return invalid host names
(CVE-2021-33195)

* golang: net/http/httputil: ReverseProxy forwards connection headers if
first one is empty (CVE-2021-33197)

* golang: math/big.Rat: may cause a panic or an unrecoverable fatal error
if passed inputs with very large exponents (CVE-2021-33198)

* golang: crash in a golang.org/x/crypto/ssh server (CVE-2022-27191)

* podman: possible information disclosure and modification (CVE-2022-2989)

* buildah: possible information disclosure and modification (CVE-2022-2990)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 9.1 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

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

1939485 - CVE-2021-20291 containers/storage: DoS via malicious image
1989564 - CVE-2021-33195 golang: net: lookup functions may return invalid host names
1989570 - CVE-2021-33197 golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty
1989575 - CVE-2021-33198 golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents
2064702 - CVE-2022-27191 golang: crash in a golang.org/x/crypto/ssh server
2081835 - networking is broken when building containers due to missing container networking package dependencies
2121445 - CVE-2022-2989 podman: possible information disclosure and modification
2121453 - CVE-2022-2990 buildah: possible information disclosure and modification

6. Package List:

Red Hat Enterprise Linux AppStream (v. 9):

Source:
buildah-1.27.0-2.el9.src.rpm

aarch64:
buildah-1.27.0-2.el9.aarch64.rpm
buildah-debuginfo-1.27.0-2.el9.aarch64.rpm
buildah-debugsource-1.27.0-2.el9.aarch64.rpm
buildah-tests-1.27.0-2.el9.aarch64.rpm
buildah-tests-debuginfo-1.27.0-2.el9.aarch64.rpm

ppc64le:
buildah-1.27.0-2.el9.ppc64le.rpm
buildah-debuginfo-1.27.0-2.el9.ppc64le.rpm
buildah-debugsource-1.27.0-2.el9.ppc64le.rpm
buildah-tests-1.27.0-2.el9.ppc64le.rpm
buildah-tests-debuginfo-1.27.0-2.el9.ppc64le.rpm

s390x:
buildah-1.27.0-2.el9.s390x.rpm
buildah-debuginfo-1.27.0-2.el9.s390x.rpm
buildah-debugsource-1.27.0-2.el9.s390x.rpm
buildah-tests-1.27.0-2.el9.s390x.rpm
buildah-tests-debuginfo-1.27.0-2.el9.s390x.rpm

x86_64:
buildah-1.27.0-2.el9.x86_64.rpm
buildah-debuginfo-1.27.0-2.el9.x86_64.rpm
buildah-debugsource-1.27.0-2.el9.x86_64.rpm
buildah-tests-1.27.0-2.el9.x86_64.rpm
buildah-tests-debuginfo-1.27.0-2.el9.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-2021-20291
https://access.redhat.com/security/cve/CVE-2021-33195
https://access.redhat.com/security/cve/CVE-2021-33197
https://access.redhat.com/security/cve/CVE-2021-33198
https://access.redhat.com/security/cve/CVE-2022-2989
https://access.redhat.com/security/cve/CVE-2022-2990
https://access.redhat.com/security/cve/CVE-2022-27191
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.1_release_notes/index

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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