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August 3rd, 2000

This notice addresses the latest security advisories from various
Linux Vendors as well as private contributors.

The list of packages:

  netscape
  knfsd
  system user account nobody
  pam_console
  gpm
  openldap
  mailman
  cvsweb.cgi
  kon2


There will be SuSE Security Announcements for the packages where work is
in progress as indicated in the respective section below.



* jpeg buffer overflows in netscape:

  The latest version of netscape is currently being tested. SuSE netscape
  rpms contain efficient workarounds against some "morbid" properties of
  netscape - it is necessary to provide stable packages. These additions
  are being reworked right now.
_________________________________________________________________________

* rpc.kstatd

  The SuSE package containing rpc.kstatd (other vendors named it
  rpc.statd) is called knfsd.rpm. An updated package is currently
  being tested.
_________________________________________________________________________

* user `nobody's HOME directory set to / and misconfigured webservers:

  SuSE Linux used to have user nobody's HOME directory set to /tmp for
  years. Starting with SuSE-7.0, it will be set to /var/lib/nobody .
  Apache, as distributed with SuSE, is configured `UserDir public_html'
  and is therefore not vulnerable for the http://machine/~nobody/-problem.
  However, we encourage admins to change this user's home using the
  commands

  mkdir -p /var/lib/nobody
  chown nobody.nogroup /var/lib/nobody
  usermod -d /var/lib/nobody

  Make sure that you move files belonging to user nobody from the former
  location to the new home and that you don't rely on the old absolute
  path in your scripts.
_________________________________________________________________________

* problems around pam_console:

  SuSE Linux does not contain the said pam-module because it isn't
  included in the official pam release. The idea of it is intriguing, but
  we have decided not to include the module into the distribution as a
  consequence of the problems that accompany its use.
  See Linux-Mandrake Security Update Advisory ID MDKSA-2000:029.
_________________________________________________________________________

* gpm DoS, setgid() return value:

  We ship a slightly older version of gpm because of some grief with the
  latest versions. The vulnerabilities in gpm have been addressed to the
  fully necessary extent back in April 5.
  As mentioned above, there is no pam_console module that could change the
  ownerships of the gpm control socket /dev/gpmctl. By consequence, a
  local denial of service attack against gpm is possible. However, we
  believe that the most effective measure against this is userdel(8),
  since hogging disk space/performance, CPU, bandwidth etc is still
  possible in the wild even with appropriate permissions on the gpm
  socket.
_________________________________________________________________________

* modes of openldap package files:

  The files are installed 755 or 644.
  There is no problem with this package in SuSE-Linux.
_________________________________________________________________________

* mailman problem
  cvsweb.cgi (TurboLinux Advisory ID#: TLSA2000016-1):
  kon2 (Linux-Mandrake Security Update Advisory ID: MDKSA-2000:028)

  SuSE-Linux either does not contain these packages or the files therein
  causing the publically announced security vulnerabilities.
_________________________________________________________________________



Regards,
Roman Drahtmüller.
- --
 -                                                                      -
| Roman Drahtmüller      <draht@suse.de> //          "Caution: Cape does |
  SuSE GmbH - Security           Phone: //       not enable user to fly."
| Nürnberg, Germany     +49-911-740530 // (Batman Costume warning label) |
 -                                                                      -
Type Bits/KeyID    Date       User ID
pub  2048/3D25D3D9 1999/03/06 SuSE Security Team <security@suse.de>

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