openSUSE Security Update: Security update for zsh
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Announcement ID: openSUSE-SU-2018:1893-1
Rating: moderate
References: #1084656 #1087026 #1089030
Cross-References: CVE-2018-1071 CVE-2018-1083 CVE-2018-1100

Affected Products:
openSUSE Leap 15.0
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An update that fixes three vulnerabilities is now available.

Description:

This update for zsh to version 5.5 fixes the following issues:

Security issues fixed:

– CVE-2018-1100: Fixes a buffer overflow in utils.c:checkmailpath() that
can lead to local arbitrary code execution (bsc#1089030)
– CVE-2018-1071: Fixed a stack-based buffer overflow in exec.c:hashcmd()
(bsc#1084656)
– CVE-2018-1083: Fixed a stack-based buffer overflow in
gen_matches_files() at compctl.c (bsc#1087026)

Non-security issues fixed:

– The effect of the NO_INTERACTIVE_COMMENTS option extends into $(…) and
`…` command substitutions when used on the command line.
– The ‘exec’ and ‘command’ precommand modifiers, and options to them, are
now parsed after parameter expansion.
– Functions executed by ZLE widgets no longer have their standard input
closed, but redirected from /dev/null instead.
– There is an option WARN_NESTED_VAR, a companion to the existing
WARN_CREATE_GLOBAL that causes a warning if a function updates a
variable from an enclosing scope without using typeset -g.
– zmodload now has an option -s to be silent on a failure to find a module
but still print other errors.

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

– openSUSE Leap 15.0:

zypper in -t patch openSUSE-2018-699=1

Package List:

– openSUSE Leap 15.0 (x86_64):

zsh-5.5-lp150.2.3.1
zsh-debuginfo-5.5-lp150.2.3.1
zsh-debugsource-5.5-lp150.2.3.1
zsh-htmldoc-5.5-lp150.2.3.1

References:

https://www.suse.com/security/cve/CVE-2018-1071.html
https://www.suse.com/security/cve/CVE-2018-1083.html
https://www.suse.com/security/cve/CVE-2018-1100.html
https://bugzilla.suse.com/1084656
https://bugzilla.suse.com/1087026
https://bugzilla.suse.com/1089030

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