Bug 1729997

Summary:	Regression introduced by CVE-2017-18206
Product:	Red Hat Enterprise Linux 7	Reporter:	Renaud Métrich <rmetrich>
Component:	zsh	Assignee:	Kamil Dudka <kdudka>
Status:	CLOSED ERRATA	QA Contact:	Karel Volný <kvolny>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.6	CC:	kdudka, kvolny
Target Milestone:	rc	Keywords:	Regression
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	zsh-5.0.2-34.el7	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-31 19:38:32 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Renaud Métrich 2019-07-15 14:23:39 UTC

Description of problem:

A customer reported a regression in zsh-5.0.2-31.el7.x86_64 compared to zsh-5.0.2-28.el7.x86_64 around "chaselinks" option:

$ unsetopt chaselinks; cd /
$ setopt chaselinks; cd /
zsh: path expansion failed, using root directory


Version-Release number of selected component (if applicable):

zsh-5.0.2-31.el7.x86_64


How reproducible:

Always, see above with zsh-5.0.2-31.el7.x86_64


Additional info:

Patch 34 (zsh-5.0.2-CVE-2014-10072.patch) introduces the regression.
I was able to fix it by backporting some additional code.

Comment 3 Kamil Dudka 2019-07-15 15:14:13 UTC

Thank you for debugging it and providing the patch!  It looks good to me.

Comment 9 errata-xmlrpc 2020-03-31 19:38:32 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:0985