-----BEGIN PGP SIGNED MESSAGE-----

===========================================================================
              AUSCERT External Security Bulletin Redistribution
                             
                      ESB-1999.168 -- RHSA-1999:052-01
               new initscripts packages available (/tmp race)
                              11 November 1999

===========================================================================

Red Hat Inc. has released the following advisory concerning a /tmp race 
condition in /etc/profile.d/lang.csh in Red Hat Linux 6.1.  This 
vulnerability may be exploited to allow users to execute arbitrary code as 
another user during their login.  This may allow users to gain privileged 
access.

- --------------------------BEGIN INCLUDED TEXT--------------------

- ---------------------------------------------------------------------
		   Red Hat, Inc. Security Advisory

Synopsis:		new initscripts packages available (/tmp race)
Advisory ID:		RHSA-1999:052-01
Issue date:		1999-11-08
Updated on:		1999-11-08	
Keywords:		lang.csh resolv.conf CHAP ppp-watch
Cross references:	
- ---------------------------------------------------------------------

1. Topic:

One security bug and several functionality bugs have been fixed in a
new release of initscripts.

2. Problem description:

A /tmp race existed in /etc/profile.d/lang.csh. Users who had
csh/tcsh as their login shell could be vulnerable to having
arbitrary shell code run by their shell on login.

On PPP connections, CHAP authentication did not always work.  New DNS
entries were not always correctly added to the /etc/resolv.conf file.
Also, there was a theoretical chance that random processes could be
sent signals by ppp-watch, though no outside process could affect
which processes would be signaled, and in every known case the signals
are sent to impossible process ids and therefore have no effect.

Other various bugs present in the initscripts that shipped with
Red Hat Linux 6.1 are fixed, including:

- - linuxconf-created IP aliases did not work
- - linuxconf-created static routes may not work
- - path to ipx_interface was incorrect
- - /sbin/service did not work
- - incompatibility with devfs
- - inability to shut down cleanly with quotas
- - any user could force 'interactive' startup on next reboot

It is recommended that users of Red Hat Linux 6.1 update
to the fixed packages.

3. Bug IDs fixed (http://developer.redhat.com/bugzilla for more info):

Security problem in lang.csh: 6645
Missing DNS entries: 6664, 6649
CHAP: 6664, 6646, 6506, 6586
Linuxconf issues: 5784, 5976, 6039, 6069, 6162, 6777
Others: 5646, 5959, 6252, 6286, 6300, 6301, 6527 

4. Relevant releases/architectures:

Red Hat Linux 6.1, Intel

5. Obsoleted by:

6. Conflicts with:

7. RPMs required:

Intel:
  ftp://updates.redhat.com/6.1/i386/initscripts-4.63-1.i386.rpm
  
Source packages:
  ftp://updates.redhat.com/6.1/SRPMS/initscripts-4.63-1.src.rpm
    

8. Solution:

For each RPM for your particular architecture, run:
    rpm -Uvh <filename>
where filename is the name of the RPM.

9. Verification:

MD5 sum                           Package Name 
- -------------------------------------------------------------------------- 
cb1e656770202d043797dcbb96c43e1d  i386/initscripts-4.63-1.i386.rpm
dabecab5d4e9ff8f82df329901b49829  SRPMS/initscripts-4.63-1.src.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
    http://www.redhat.com/corp/contact.html
 
You can verify each package with the following command:
    rpm --checksig  <filename>

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg <filename>

10. References:

- --------------------------END INCLUDED TEXT--------------------

This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content.  The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

	http://www.auscert.org.au/Information/advisories.html

If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).

Internet Email: auscert@auscert.org.au
Facsimile:	(07) 3365 7031
Telephone:	(07) 3365 4417 (International: +61 7 3365 4417)
		AusCERT personnel answer during Queensland business hours
		which are GMT+10:00 (AEST).
		On call after hours for emergencies.


-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key

iQCVAwUBOEJrqih9+71yA2DNAQERzgQAjgCIlmzHC2XiJ2NSsOr1ieUkFsUW0GQo
eA5Q2/z03UpDk3kF77w+4jCg/ftDAe1OCGYbGXwGPXfWHlzAv5K5a2wqj1e2eqIA
JPDV3RjX10OZMrF3tRK1KQaYRjEyjqtzobRZgEbdhK22JcuQy6xC47++LDrP0lvF
IxSyQccDNDk=
=eHZp
-----END PGP SIGNATURE-----