Bug 1563395 (CVE-2018-1100) - CVE-2018-1100 zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution
Summary: CVE-2018-1100 zsh: buffer overflow in utils.c:checkmailpath() can lead to loc...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-1100
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
: 1563394 (view as bug list)
Depends On: 1563396 1563397 1563402 1563403 1563404
Blocks: 1563387
TreeView+ depends on / blocked
 
Reported: 2018-04-03 20:27 UTC by Richard Maciel Costa
Modified: 2021-02-17 00:33 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2018-09-19 18:32:54 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:1932 0 None None None 2018-06-19 04:56:35 UTC
Red Hat Product Errata RHSA-2018:3073 0 None None None 2018-10-30 07:30:35 UTC

Description Richard Maciel Costa 2018-04-03 20:27:51 UTC 
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.
Comment 1 Richard Maciel Costa 2018-04-03 20:28:04 UTC 
Acknowledgments:

Name: Richard Maciel Costa (Red Hat)
Comment 2 Richard Maciel Costa 2018-04-03 20:28:36 UTC 
Created zsh tracking bugs for this issue:

Affects: fedora-all [bug 1563396]
Comment 6 Richard Maciel Costa 2018-04-03 20:58:34 UTC 
*** Bug 1563394 has been marked as a duplicate of this bug. ***
Comment 9 Richard Maciel Costa 2018-04-10 18:11:16 UTC 
Fixed by upstream patch:
https://sourceforge.net/p/zsh/code/ci/31f72205630687c1cef89347863aab355296a27f/
Comment 10 errata-xmlrpc 2018-06-19 04:56:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:1932 https://access.redhat.com/errata/RHSA-2018:1932
Comment 11 errata-xmlrpc 2018-10-30 07:30:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3073 https://access.redhat.com/errata/RHSA-2018:3073
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