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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
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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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