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___________________________________________________________________________________________
_

                        TurboLinux Security Announcement


        Vulnerable Packages: netscape-communicator 4.75-1 and earlier
        Date: 02/05/2001 5:00 PDT

        Affected TurboLinux versions:TL 6.1 WorkStation,
                                     All TurboLinux versions 6.0.5
                                     and earlier

        TurboLinux Advisory ID#:  TLSA2000020-2

        Credits: Vulnerability discovered by Michal Zalewski
                 <lcamtuf@DIONE.IDS.PL>.
____________________________________________________________________________________________
_

A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible.
____________________________________________________________________________________________
_

1. Problem Summary(From the Red Hat, Inc. Security Advisory)

   A buffer overflow exists in Netscape's HTML parsing code.  By using
   specially designed code, a remote website could cause arbitrary code to
   be run on the local machine.

2. Solution

  Update the package from our ftp server by running the following command:

  rpm -Uvh --nodeps --force ftp_path_to_filename

  Where ftp_path_to_filename is the following:

  netscape-communicator-4.76-5.i386.rpm

  The source RPM can be downloaded here:

  netscape-communicator-4.76-5.src.rpm

  **Note: You must rebuild and install the RPM if you choose to download
  and install the SRPM.  Simply installing the SRPM alone WILL NOT CLOSE
  THE SECURITY HOLE.

 Please verify the MD5 checksums of the updates before you install:

  MD5 sum                               Package Name
--------------------------------------------------------------------------------------------
-
d69902adc2de22300c81f1c3c080f8f3        netscape-communicator-4.76-5.i386.rpm
df53191a6c10ba901fba3f259ef0d987        netscape-communicator-4.76-5.src.rpm
____________________________________________________________________________________________
_

These packages are GPG signed by Turbolinux for security. Our key
is available here:

 http://www.turbolinux.com/security/tlgpgkey.asc

To verify a package, use the following command:

 rpm --checksig name_of_rpm

To examine only the md5sum, use the following command:

 rpm --checksig --nogpg name_of_rpm

**Note: Checking GPG keys requires RPM 3.0 or higher.

_____________________________________________________________________________________________
_
You can find more updates on our ftp server:

   ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
   and Server security updates
   ftp://ftp.turbolinux.com/pub/updates/4.0/security/ for TL4.0 Workstation
   and Server security updates

Our webpage for security announcements:

   http://www.turbolinux.com/security

If you want to report vulnerabilities, please contact:

   security@turbolinux.com
_____________________________________________________________________________________________
_

Subscribe to the TurboLinux Security Mailing lists:

  TL-security - A moderated list for discussing security issues in TurboLinux
  products.
  Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security

  TL-security-announce - An announce-only mailing list for security updates
  and alerts.

  Subscribe at:

         http://www.turbolinux.com/mailman/listinfo/tl-security-announce

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