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

===========================================================================
              AUSCERT External Security Bulletin Redistribution
                             
                      ESB-2000.299 -- RHSA-2000:087-02
                  Potential security problems in ping fixed
                               19 October 2000

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

	AusCERT Security Bulletin Summary
	---------------------------------

Product:                ping
Vendor:                 Red Hat
Operating System:       Red Hat Linux
                        Linux
Impact:                 Reduced Security
Access Required:        Local

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

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

Synopsis:          Potential security problems in ping fixed.
Advisory ID:       RHSA-2000:087-02
Issue date:        2000-10-17
Updated on:        2000-10-18
Product:           Red Hat Linux
Keywords:          ping buffer overflows
Cross references:  N/A
- ---------------------------------------------------------------------

1. Topic:

N/A

2. Relevant releases/architectures:

Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 7.0 - i386
Red Hat Linux 7.0J - i386

3. Problem description:

Several problems in ping are fixed:

1) Root privileges are dropped after acquiring a raw socket.
2) An 8 byte overflow of a static buffer "outpack" is prevented.
3) An overflow of a static buffer "buf" is prevented.

A non-exploitable root only segfault is fixed as well.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

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

18611 - Unfortunate regression in "ping" security
16677 - "ping -c 1 -s 65690  localhost" segfaults


6. RPMs required:

Red Hat Linux 6.2:

alpha:
ftp://updates.redhat.com/6.2/alpha/iputils-20001010-1.6x.alpha.rpm

sparc:
ftp://updates.redhat.com/6.2/sparc/iputils-20001010-1.6x.sparc.rpm

i386:
ftp://updates.redhat.com/6.2/i386/iputils-20001010-1.6x.i386.rpm

sources:
ftp://updates.redhat.com/6.2/SRPMS/iputils-20001010-1.6x.src.rpm

Red Hat Linux 7.0:

i386:
ftp://updates.redhat.com/7.0/i386/iputils-20001010-1.i386.rpm

sources:
ftp://updates.redhat.com/7.0/SRPMS/iputils-20001010-1.src.rpm

7. Verification:

MD5 sum                           Package Name
- --------------------------------------------------------------------------
e4b1ca9fbebe4dfa6e37eba5a48d307f  6.2/SRPMS/iputils-20001010-1.6x.src.rpm
6904ba7f8502fb009002cd96645f0539  6.2/alpha/iputils-20001010-1.6x.alpha.rpm
ce5de156e02e5e8e010a344e8c0cdc34  6.2/i386/iputils-20001010-1.6x.i386.rpm
11c046097bfb8c3fa62635aa531edfeb  6.2/sparc/iputils-20001010-1.6x.sparc.rpm
7bb083f0624eafd1a3f2038ff740789a  7.0/SRPMS/iputils-20001010-1.src.rpm
1973d87e9f0b685991ab4ffba1a7d257  7.0/i386/iputils-20001010-1.i386.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>

8. References:

N/A

Copyright(c) 2000 Red Hat, Inc.

- --------------------------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

iQCVAwUBOlSNDih9+71yA2DNAQFeZwP/ebdFLnd1OUJK10vg+wIQ5c7LGRsIA7Gu
G4dNiLa1cVIqSUbbafP8aFPTP54eG/a0SbTTZv0FH1i4Y/w7bQSpho1gWAU7sIhY
okz/AG5zT3Mg51G84/J1YQUgen9B23g+G2tuKSKkJA6RgfHXsvc4prxmsBeLowmH
kjmyppOnpx4=
=82q6
-----END PGP SIGNATURE-----