Bug 239070 (CVE-2007-2797)

Summary:	CVE-2007-2797 Wrong settings for the tty (mesg: error: tty device is not owned by group `tty')
Product:	[Other] Security Response	Reporter:	Klaus Ethgen <Klaus+rhbz>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dickey, wim.de.haan
Target Milestone:	---	Keywords:	EasyFix, Regression, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2007-0701	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-11-15 15:02:42 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Klaus Ethgen 2007-05-04 18:23:21 UTC

Description of problem:
The new xterm with upgrade 5 of WS4 set the permissions of the tty in a wrong 
way. Everytime I open a new terminal I get the message:

mesg: error: tty device is not owned by group `tty'

In fact the tty is owned by my native group.

Version-Release number of selected component (if applicable):
The bug is in xterm-192-7.el4
The version xterm-192-4.EL4 is error free

Steps to Reproduce:
1. Install xterm-192-7.el4
2. Start a xterm
3. Optional "ls -l `tty`"
  
Actual results:
The message "mesg: error: tty device is not owned by group `tty'" and wrong 
rights of `tty`

Expected results:
a tty with the group rights tty

Additional info:
This bug was also on Debian/GNU Linux more than one year ago. The bug is still 
on state "pending" but should be closed as the problem is gone (also long time 
ago): http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=349924

Comment 1 Miroslav Lichvar 2007-05-07 08:14:16 UTC

Unfortunately a change in build environment caused a wrong group to be used as
tty group.

Comment 2 RHEL Program Management 2007-05-07 08:26:31 UTC

This bugzilla has Keywords: Regression.  

Since no regressions are allowed between releases, 
it is also being proposed as a blocker for this release.  

Please resolve ASAP.

Comment 3 Thomas E. Dickey 2007-05-07 10:11:59 UTC

Does the RPM use "--with-tty-group"?
I thought that would address this area.

Comment 4 Miroslav Lichvar 2007-05-07 10:28:51 UTC

The option fixes the problem, but it was introduced in a later version than the
version packaged in RHEL4.

Comment 5 Miroslav Lichvar 2007-07-09 10:06:37 UTC

*** Bug 247429 has been marked as a duplicate of this bug. ***

Comment 11 errata-xmlrpc 2007-11-15 15:02:42 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 the 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/RHSA-2007-0701.html