Bug 689382 - null pointer dereference crashes tcsh
Summary: null pointer dereference crashes tcsh
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: tcsh617
Version: 5.5
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: rc
: ---
Assignee: Vojtech Vitek
QA Contact:
URL:
Whiteboard:
Depends On: 624450
Blocks: 631815
TreeView+ depends on / blocked
 
Reported: 2011-03-21 09:46 UTC by Ondrej Vasik
Modified: 2015-03-04 23:57 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Previously, under certain circumstances, a null pointer may have been incorrectly dereferenced, causing the tcsh shell to terminate unexpectedly. With this update, the pointer is now tested for the NULL value before it is dereferenced, and tcsh no longer crashes in this circumstance.
Clone Of: 624450
Environment:
Last Closed: 2011-07-21 08:47:50 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:1072 0 normal SHIPPED_LIVE new package: tcsh617 2011-07-21 08:47:46 UTC

Comment 4 Vojtech Vitek 2011-05-23 15:52:10 UTC
It turned out there was a regression in tcsh-6.17.00, so the bug was still valid. I've reported the issue upstream: http://bugs.gw.com/view.php?id=122

Comment 6 Miroslav Svoboda 2011-07-01 22:06:26 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously, under certain circumstances, a null pointer may have been incorrectly dereferenced, causing the tcsh shell to terminate unexpectedly. With this update, the pointer is now tested for the NULL value before it is dereferenced, and tcsh no longer crashes in this circumstance.

Comment 7 errata-xmlrpc 2011-07-21 08:47:50 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1072.html

Comment 8 errata-xmlrpc 2011-07-21 12:10:08 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1072.html


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