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[TL-Security-Announce] dump-0.4b11-1 and earlier TLSA200007-1
From: k8e () MAIL TURBOLINUX COM (Katie Moussouris)
Date: Wed, 15 Mar 2000 12:09:33 -0800


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______________________________________________________________________________

                        TurboLinux Security Announcement

        Package: dump-0.4b11-1 and earlier
        Date:   Wed Mar 15 12:03:18 PST 2000

        Affected TurboLinux versions: 6.0.2 and earlier
        Vulnerability Type:  local buffer overrun
        TurboLinux Advisory ID#:  TLSA200007-1
        BugTraq ID#: 1020
        Credits:  This vulnerability was posted to the Bugtraq mailing list by
        KimYongJun <s96192 () ce hannam ac kr> on February 28, 2000.
______________________________________________________________________________

A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible or disable the service.
_____________________________________________________________________________

1. Problem Summary

   The dump utility is setuid and setgid root.  Previous versions of dump
   did not correctly drop the effective gid settings.  When passed an
   oversized argument to the "-f a" parameters, it will overrun the stack.
   If this argument is crafted properly, it may be possible to replace the
   instruction pointer or return address on the stack and execute arbitrary
   code with the permissions of the process (gid of root).

2. Impact

   An attacker could use this overrun to execute code with the gid of root,
   leading to further system compromise.

3. Solution

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

  rpm -Fv ftp_path_to_filename

  Where ftp_path_to_filename is the following:

  ftp://ftp.turbolinux.com/pub/updates/6.0/security/dump-0.4b16-1.i386.rpm

  The source rpm can be downloaded here:

  ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/dump-0.4b16-1.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 checksum of the update before you install:

  MD5 sum                               Package Name
- ------------------------------------------------------------
0a3777c176c1580fe44f03acfdc70f59  dump-0.4b16-1.i386.rpm
64f95b579e6a813f2f207f1817d8c5e8  dump-0.4b16-1.src.rpm
______________________________________________________________________________

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:
  rt-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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