______________________________________________________________________________

                        SuSE Security Announcement

        Package:                traceroute
        Announcement-ID:        SuSE-SA:2000:041
        Date:                   Monday, October 16th, 2000 16:10 MEST
        Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
        Vulnerability Type:     local root compromise
        Severity (1-10):        6
        SuSE default package:   yes
        Other affected systems: Linux systems using the NANOG traceroute

    Content of this advisory:
        1) security vulnerability resolved: traceroute
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds
        3) standard appendix (further information)

______________________________________________________________________________

1)  problem description, brief discussion, solution, upgrade information

    The security problem in the traceroute program as shipped with SuSE 
    Linux distributions is completely different from the one reported on
    security mailing lists a few days ago (`traceroute -g 1 -g 1') by
    Pekka Savola <pekkas@netcore.fi>. SuSE distributions do not contain
    this particular traceroute implementation.
    The problem in our traceroute was discovered independently and reported
    to us by H D Moore <hdm@secureaustin.com>. The problem in the 
    implementation of traceroute that we ship is a format string parsing 
    bug in a routine that can be used to terminate a line in traceroute's
    output to easily embed the program in cgi scripts as used for web 
    frontends for traceroute.
    Using a specially crafted sequence of characters on the commandline,
    it is possile to trick the traceroute program into running arbitrary
    code as root.

    If you want to temporarily work around this security vulnerability,
    you can disable traceroute for normal users by clearing the suid bit on
    the file /usr/sbin/traceroute: chmod -s /usr/sbin/traceroute . Do not 
    forget to change the respective line in /etc/permissions to read:
        /usr/sbin/traceroute                   root.root        755

    We have prepared update packages on our ftp server that eliminate the
    vulnerability in the traceroute program. Note that the traceroute program
    is contained in the nkita or the nkitb package, depending on the
    distribution version.

    Download the update package from locations described below and install 
    the package with the command `rpm -Fhv file.rpm'. The md5sum for each
    file is in the line below. You can verify the integrity of the rpm
    files using the command
        `rpm --checksig --nogpg file.rpm',
    independently from the md5 signatures below.


    i386 Intel Platform:

    SuSE-7.0
      
      6c8f713a071a96c287942f880cd5919c
    source rpm:
      
      c01db9ee70a9ac01cba1bace93cfdd16

    SuSE-6.4
      
      118075b7fc295be86b3659bf9b3fa778
    source rpm:
      
      61aa9e2e4272606d2bd70828a72c957c

    SuSE-6.3
      
      6c5932e4083de6f499e4c77fcadbffc1
    source rpm:
      
      9debb8804293384057d69254614a1496

    SuSE-6.2
      
      49269283c6d39a234f61303b2e918413
    source rpm:
      
      1cc00eb9b37b37a51fc249db3b51f6e1

    SuSE-6.1
      
      2fe1c6d70fcf1272da95f33ad7ad1010
    source rpm:
      
      74d6f2e623b7fcac1b0881b1bfbe0880


    SuSE-6.0
    Please use the update packages from the 6.1 distribution.


    Sparc Platform:

    SuSE-7.0
      
      e9bc3512b6182f540e74308c02d81f65
    source rpm:
      
      8fba03e9cef63ae076b10fb61c800e39



    AXP Alpha Platform:

    SuSE-6.4
      
      7850969c7b3beaf3fd1ce8b2a9246be0
    source rpm:
      
      6e5a964177b6cf87524119c747f0220b

    SuSE-6.3
      
      6440a6a7da903829cff57a5f8c7cda91
    source rpm:
      
      53bf05462378c384e8a46f3c6c368c67



    PPC Power PC Platform:

    SuSE-7.0
      
      407d1c6731228f5d3e9addd108d31224
      
      8fba03e9cef63ae076b10fb61c800e39

    SuSE-6.4
      
      c432a5b8d37640be6e325ef9603f9cba
    source rpm:
      
      edf24c1989c85616d1caf53872e61f17

______________________________________________________________________________

2)  Pending vulnerabilities in SuSE Distributions and Workarounds:

    A set of security announcements is following this advisory.
______________________________________________________________________________

3)  standard appendix:

    SuSE runs two security mailing lists to which any interested party may
    subscribe:

    suse-security@suse.com
        -   general/linux/SuSE security discussion. 
            All SuSE security announcements are sent to this list.
            To subscribe, send an email to 
                <suse-security-subscribe@suse.com>.

    suse-security-announce@suse.com
        -   SuSE's announce-only mailing list.
            Only SuSE's security annoucements are sent to this list.
            To subscribe, send an email to
                <suse-security-announce-subscribe@suse.com>.

    For general information or the frequently asked questions (faq) 
    send mail to:
        <suse-security-info@suse.com> or
        <suse-security-faq@suse.com> respectively.

    ==============================================    SuSE's security contact is <security@suse.com>.
    ==============================================
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) |
 -                                                                      -
______________________________________________________________________________

    The information in this advisory may be distributed or reproduced,
    provided that the advisory is not modified in any way.
    SuSE GmbH makes no warranties of any kind whatsoever with respect 
    to the information contained in this security advisory.

Type Bits/KeyID    Date       User ID
pub  2048/3D25D3D9 1999/03/06 SuSE Security Team <security@suse.de>

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