SUSE Security Announcement: tcpdump (SuSE-SA:2004:002)

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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                tcpdump
        Announcement-ID:        SuSE-SA:2004:002
        Date:                   Wed Jan 14 14:00:00 MET 2004
        Affected products:      8.0, 8.1, 8.2, 9.0
                                SuSE eMail Server III
                                SuSE Firewall Adminhost VPN
                                SuSE Linux Admin-CD for Firewall
                                SuSE Firewall on CD 2 - VPN
                                SuSE Firewall on CD 2
                                SuSE Linux Enterprise Server 7
                                SLES 8 for IBM iSeries and IBM pSeries
                                SuSE Linux Enterprise Server 8
                                SuSE Linux Desktop 1.0
                                SuSE Linux School Server for i386
                                SuSE Linux Standard Server 8
                                SuSE Linux Office Server
                                UnitedLinux 1.0
        Vulnerability Type:     remote DoS
        Severity (1-10):        3
        SUSE default package:   yes
        Cross References:       http://www.tcpdump.org
                                CAN-2003-0989

    Content of this advisory:
        1) security vulnerability resolved: remote DoS condition in tcpdumps
           ISAKMP handling
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds:
            - opera
            - mc
            - mod_gzip
            - tripwire
            - cvs
            - gnome-filesystem
            - XDM (XFree86, xf86)
            - inn
            - mpg321
            - popper
            - kdepim3
            - pin
            - 3ddiag
            - mod_auth_shadow
        3) standard appendix (further information)

______________________________________________________________________________

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

    Tcpdump is a well known tool for administrators to analyze network
    traffic.
      There is a bug in the tcpdump code responsible for handling ISAKMP
    messages. This bug allows remote attackers to destroy a current
    tcpdump session by tricking the tcpdump program with evil ISAKMP
    messages to enter an endless loop.

    Please download the update package for your distribution and verify its
    integrity by the methods listed in section 3) of this announcement.
    Then, install the package using the command "rpm -Fhv file.rpm" to apply
    the update.
    Our maintenance customers are being notified individually. The packages
    are being offered to install from the maintenance web.

    i386 Intel Platform:

    SuSE-9.0:
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/tcpdump-3.7.2-72.i586.rpm
      a4395d7d819ea8918778f9a3b91c297c
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/tcpdump-3.7.2-72.i586.patch.rpm
      4eae84a6074af7c2386f9145a49f9477
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/tcpdump-3.7.2-72.src.rpm
      b32b0e08e9add34b3c42599734723454

    SuSE-8.2:
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/tcpdump-3.7.1-341.i586.rpm
      39c8e448e4056111444658ce93281ca3
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/tcpdump-3.7.1-341.i586.patch.rpm
      dfcb12acdad084fcf15508361a3018b5
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/tcpdump-3.7.1-341.src.rpm
      b92c579649acc9fb19810bcc7a670d6d

    SuSE-8.1:
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/tcpdump-3.7.1-341.i586.rpm
      5527a4823b041894324ae65b02e40011
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/tcpdump-3.7.1-341.i586.patch.rpm
      f4c933fd520dbcab98092e5a2fe8846c
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/tcpdump-3.7.1-341.src.rpm
      0b118d8fe78cea0cc2405a934a77b7fd

    SuSE-8.0:
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/tcpdump-3.6.2-330.i386.rpm
      d77a4e84796cc96be12c97ea19d272bb
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/tcpdump-3.6.2-330.i386.patch.rpm
      74882ed085cc27c938ed5529df8040c4
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/tcpdump-3.6.2-330.src.rpm
      51f39911dadd7add63e07a922840314c

    Opteron x86_64 Platform:

    SuSE-9.0:
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/tcpdump-3.7.2-68.x86_64.rpm
      0278d04abfe2bcffca8f45e711beebd0
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/tcpdump-3.7.2-68.x86_64.patch.rpm
      348b217551a35a6e4f9698e92f3170c8
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/tcpdump-3.7.2-68.src.rpm
      2deb0ae848d115e00593a5639ec5b6b8


______________________________________________________________________________

2)  Pending vulnerabilities in SUSE Distributions and Workarounds:

    - Opera web browser
    The SuSE Security Team has discovered a flaw in the Opera web browsers
    X.509 certificate handling during the SSL handshake. It allows attackers
    to prompt the Opera web browser with invalid certificates containing
    the public key of the attacker. Thus, he can read or modify the
    HTTPS traffic without notification by the user.
    New packages fixing this problem will be available soon on our ftp
    servers.

    - mc
    By using a special combination of links in archive-files it is possible
    to execute arbitrary commands while mc tries to open it in its VFS.
    The packages will be released soon.

    - mod_gzip (apache-contrib)
    The apache module mod_gzip is vulnerable to remote code execution
    while running in debug-mode. We do not ship this module in debug-mode
    but future versions will include the fix.
    Additionally the mod_gzip code was audited to fix more possible security
    related bugs.
    After more testing a new apache-contrib RPM package will be released.

    - tripwire
    Tripwire is a file integrity checker. The tripwire version on SuSE Linux
    8.2 and 9.0 do crash when a requested file does not exists.
    New packages will be available soon.

    - cvs
    The cvs server-side can be tricked to create files in the root filesystem
    of the server by requesting malformed modules. The permissions on the
    root filesystem normally prevent this malfunction. Additionally the
    package will include a fix for a format-string bug.
    New packages will be available soon.

    - gnome-filesystem
    A script included in the gnome-filesystem package handles temporary
    files insecurely. This script is called by YaST2 with root
    privileges. The bug can be exploited locally to create or overwrite
    arbitrary files in the filesystem. The bug is fixed in our current
    source-tree since November 2003 but nevertheless update packages
    for older SuSE Linux versions will be released soon.

    - XDM (XFree86, xf86)
    A missing check for failure conditions in the PAM