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___________________________________________________________________________

                     Turbolinux Security Announcement

        Package: tcpdump
        Vulnerable Packages: All Turbolinux versions previous to 3.6.2-1
        Date: 06/06/2001 5:00 PDT

        Affected Turbolinux platforms:  TL 6.1 Workstation,
                                        All Turbolinux versions
                                        6.0.5 and earlier

        Turbolinux Advisory ID#:  TLSA2001027

   References: http://www.tcpdump.org/tcpdump-changes.txt
               http://www.ciac.org/ciac/bulletins/l-015.shtml
___________________________________________________________________________

A security hole has been discovered in the package tcpdump.  Please update
this package in your installation as soon as possible.
___________________________________________________________________________

1. Problem Summary
   
   	Remote buffer overflows were discovered that would enable a remote
   attack of a local tcpdump process.  Intrusion detection using tcpdump
   would be rendered useless since the attack stops all network activity
   on the system.  This update also addresses the vulnerability in the
   decoding of AFS ACL packets, allowing a remote attacker to run arbitrary 
   code on the local system as user root.
  
2. Solution

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

  rpm -Uvh ftp_path_to_filename

  Where ftp_path_to_filename is the following:

ftp://ftp.turbolinux.com/pub/updates/6.0/security/tcpdump-3.6.2-1.i386.rpm

  The source RPM can be downloaded here:

ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/tcpdump-3.6.2-1.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
___________________________________________________________________________

  c6003e7b6a614b5569ab4466950b45fd      tcpdump-3.6.2-1.i386.rpm
  8a471ef05ee45b9964390c1807b61ad3      tcpdump-3.6.2-1.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:

 md5sum 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.x 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
                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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