An update for zsh is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,

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

Synopsis:          Important: zsh security update
Advisory ID:       RHSA-2020:0978-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0978
Issue date:        2020-03-26
CVE Names:         CVE-2019-20044 
====================================================================
1. Summary:

An update for zsh is now available for Red Hat Enterprise Linux 8.0 Update
Services for SAP Solutions.

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:

Red Hat Enterprise Linux AppStream E4S (v. 8.0) - noarch
Red Hat Enterprise Linux BaseOS E4S (v. 8.0) - aarch64, ppc64le, s390x, x86_64

3. Description:

The zsh shell is a command interpreter usable as an interactive login shell
and as a shell script command processor. Zsh resembles the ksh shell (the
Korn shell), but includes many enhancements. Zsh supports command-line
editing, built-in spelling correction, programmable command completion,
shell functions (with autoloading), a history mechanism, and more.

Security Fix(es):

* zsh: insecure dropping of privileges when unsetting PRIVILEGED option
(CVE-2019-20044)

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/):

1804859 - CVE-2019-20044 zsh: insecure dropping of privileges when unsetting PRIVILEGED option

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.0):

noarch:
zsh-html-5.5.1-6.el8_0.2.noarch.rpm

Red Hat Enterprise Linux BaseOS E4S (v. 8.0):

Source:
zsh-5.5.1-6.el8_0.2.src.rpm

aarch64:
zsh-5.5.1-6.el8_0.2.aarch64.rpm
zsh-debuginfo-5.5.1-6.el8_0.2.aarch64.rpm
zsh-debugsource-5.5.1-6.el8_0.2.aarch64.rpm

ppc64le:
zsh-5.5.1-6.el8_0.2.ppc64le.rpm
zsh-debuginfo-5.5.1-6.el8_0.2.ppc64le.rpm
zsh-debugsource-5.5.1-6.el8_0.2.ppc64le.rpm

s390x:
zsh-5.5.1-6.el8_0.2.s390x.rpm
zsh-debuginfo-5.5.1-6.el8_0.2.s390x.rpm
zsh-debugsource-5.5.1-6.el8_0.2.s390x.rpm

x86_64:
zsh-5.5.1-6.el8_0.2.x86_64.rpm
zsh-debuginfo-5.5.1-6.el8_0.2.x86_64.rpm
zsh-debugsource-5.5.1-6.el8_0.2.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-2019-20044
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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