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[RHSA-2019:2017-01] Moderate: zsh security and bug fix update



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

Synopsis:          Moderate: zsh security and bug fix update
Advisory ID:       RHSA-2019:2017-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2017
Issue date:        2019-08-06
CVE Names:         CVE-2018-13259 
=====================================================================

1. Summary:

An update for zsh is now available for Red Hat Enterprise Linux 7.

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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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: Improper handling of shebang line longer than 64 (CVE-2018-13259)

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 7.7 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/):

1626184 - CVE-2018-13259 zsh: Improper handling of shebang line longer than 64

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
zsh-5.0.2-33.el7.src.rpm

x86_64:
zsh-5.0.2-33.el7.x86_64.rpm
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm
zsh-html-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
zsh-5.0.2-33.el7.src.rpm

x86_64:
zsh-5.0.2-33.el7.x86_64.rpm
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm
zsh-html-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
zsh-5.0.2-33.el7.src.rpm

ppc64:
zsh-5.0.2-33.el7.ppc64.rpm
zsh-debuginfo-5.0.2-33.el7.ppc64.rpm

ppc64le:
zsh-5.0.2-33.el7.ppc64le.rpm
zsh-debuginfo-5.0.2-33.el7.ppc64le.rpm

s390x:
zsh-5.0.2-33.el7.s390x.rpm
zsh-debuginfo-5.0.2-33.el7.s390x.rpm

x86_64:
zsh-5.0.2-33.el7.x86_64.rpm
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
zsh-debuginfo-5.0.2-33.el7.ppc64.rpm
zsh-html-5.0.2-33.el7.ppc64.rpm

ppc64le:
zsh-debuginfo-5.0.2-33.el7.ppc64le.rpm
zsh-html-5.0.2-33.el7.ppc64le.rpm

s390x:
zsh-debuginfo-5.0.2-33.el7.s390x.rpm
zsh-html-5.0.2-33.el7.s390x.rpm

x86_64:
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm
zsh-html-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
zsh-5.0.2-33.el7.src.rpm

x86_64:
zsh-5.0.2-33.el7.x86_64.rpm
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
zsh-debuginfo-5.0.2-33.el7.x86_64.rpm
zsh-html-5.0.2-33.el7.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-2018-13259
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/7.7_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 2019 Red Hat, Inc.
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