[RHSA-2020:3474-01] Moderate: bash security update

[Security announcements for all Red Hat products and services.]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Moderate: bash security update
Advisory ID:       RHSA-2020:3474-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3474
Issue date:        2020-08-18
CVE Names:         CVE-2019-9924 
=====================================================================

1. Summary:

An update for bash is now available for Red Hat Enterprise Linux 7.6
Extended Update Support.

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 ComputeNode EUS (v. 7.6) - x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

3. Description:

The bash packages provide Bash (Bourne-again shell), which is the default
shell for Red Hat Enterprise Linux.

Security Fix(es):

* bash: BASH_CMD is writable in restricted bash shells (CVE-2019-9924)

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 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/):

1691774 - CVE-2019-9924 bash: BASH_CMD is writable in restricted bash shells

6. Package List:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):

Source:
bash-4.2.46-32.el7_6.src.rpm

x86_64:
bash-4.2.46-32.el7_6.x86_64.rpm
bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):

x86_64:
bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm
bash-doc-4.2.46-32.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.6):

Source:
bash-4.2.46-32.el7_6.src.rpm

ppc64:
bash-4.2.46-32.el7_6.ppc64.rpm
bash-debuginfo-4.2.46-32.el7_6.ppc64.rpm

ppc64le:
bash-4.2.46-32.el7_6.ppc64le.rpm
bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm

s390x:
bash-4.2.46-32.el7_6.s390x.rpm
bash-debuginfo-4.2.46-32.el7_6.s390x.rpm

x86_64:
bash-4.2.46-32.el7_6.x86_64.rpm
bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
bash-4.2.46-32.el7_6.src.rpm

aarch64:
bash-4.2.46-32.el7_6.aarch64.rpm
bash-debuginfo-4.2.46-32.el7_6.aarch64.rpm

ppc64le:
bash-4.2.46-32.el7_6.ppc64le.rpm
bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm

s390x:
bash-4.2.46-32.el7_6.s390x.rpm
bash-debuginfo-4.2.46-32.el7_6.s390x.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 7.6):

ppc64:
bash-debuginfo-4.2.46-32.el7_6.ppc64.rpm
bash-doc-4.2.46-32.el7_6.ppc64.rpm

ppc64le:
bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm
bash-doc-4.2.46-32.el7_6.ppc64le.rpm

s390x:
bash-debuginfo-4.2.46-32.el7_6.s390x.rpm
bash-doc-4.2.46-32.el7_6.s390x.rpm

x86_64:
bash-debuginfo-4.2.46-32.el7_6.x86_64.rpm
bash-doc-4.2.46-32.el7_6.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
bash-debuginfo-4.2.46-32.el7_6.aarch64.rpm
bash-doc-4.2.46-32.el7_6.aarch64.rpm

ppc64le:
bash-debuginfo-4.2.46-32.el7_6.ppc64le.rpm
bash-doc-4.2.46-32.el7_6.ppc64le.rpm

s390x:
bash-debuginfo-4.2.46-32.el7_6.s390x.rpm
bash-doc-4.2.46-32.el7_6.s390x.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-2019-9924
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=5dqI
-----END PGP SIGNATURE-----