SUSE Security Announcement: mozilla (SUSE-SA:2004:036)

6 Oct 2004


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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                mozilla
        Announcement-ID:        SUSE-SA:2004:036
        Date:                   Wednesday, Oct  6th 14:36:39 MEST 2004
        Affected products:      8.1, 8.2, 9.0, 9.1
                                SUSE Linux Enterprise Server 8, 9
                                SUSE Linux Desktop 1.0
        Vulnerability Type:     various vulnerabilities
        Severity (1-10):        5
        SUSE default package:   yes
        Cross References:       http://www.mozilla.org/security/

    Content of this advisory:
        1) security vulnerability resolved:
             - various vulnerabilities
           problem description
        2) solution/workaround
        3) special instructions and notes
        4) package location and checksums
        5) pending vulnerabilities, solutions, workarounds:
            - openmotif
        6) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion

    During the last months a number of security problems have been fixed
    in Mozilla and Mozilla based brwosers. These include:

     - CAN-2004-0718: content in unrelated windows could be modified
     - CAN-2004-0722: integer overflow in the SOAPParameter object constructor
     - CAN-2004-0757: heap-based buffer overflow in the SendUidl of POP3 code
     - CAN-2004-0758: denial-of-service with malicious SSL certificates
     - CAN-2004-0759: read files via JavaScript
     - CAN-2004-0760: MIME code handles %00 incorrectly
     - CAN-2004-0761: spoofing of security lock icon
     - CAN-2004-0762: manipulation of XPInstall Security dialog box
     - CAN-2004-0763: spoofing of SSL certificates by using redirects and
       JavaScript
     - CAN-2004-0764: hijacking the user interface via the "chrome" flag and
       XML User Interface Language (XUL) files
     - CAN-2004-0765: spoofing SSL certificates due to incorrecting comparsion
       of hostnames
     - CAN-2004-0902: Several heap based buffer overflows in Mozilla Browsers.
     - CAN-2004-0903: Stack-based buffer overflow in the writeGroup function
       in vcard handling.
     - CAN-2004-0904: Overflow in BMP bitmap decoding.
     - CAN-2004-0905: Crossdomain scripting and possible code execution by
       javascript drag and drop.
     - CAN-2004-0906: XPI Installer sets insecure permissions, allowing local
       users to overwrite files of the user.
     - CAN-2004-0908: Allow untrusted javascript code to read and write to the
       clipboard.
     - CAN-2004-0909: Allow remote attackers to trick the user into performing
       dangerous operations by modifying security relevant dialog boxes.


2) solution/workaround

    Since there is no workaround, we recommend an update in any case
    if you use the mozilla browser.

3) special instructions and notes

    After successfully updating the package(s) you need to close
    all instances of the web browser and restart it again.

4) package location and checksums

    Due to the large amount of updated packages and dependencies we do
    not provide MD5-sums this time. The updates are cryptographically
    signed and are available for download via the Yast Online Update.

______________________________________________________________________________

5)  Pending vulnerabilities in SUSE Distributions and Workarounds:

     - openmotif
     The XPM security problems within openmotif have been fixed. New packages
     are available on our ftp servers.


______________________________________________________________________________

6)  standard appendix: authenticity verification, additional information

  - Package authenticity verification:

    SUSE update packages are available on many mirror ftp servers all over
    the world. While this service is being considered valuable and important
    to the free and open source software community, many users wish to be
    sure about the origin of the package and its content before installing
    the package. There are two verification methods that can be used
    independently from each other to prove the authenticity of a downloaded
    file or rpm package:
    1) md5sums as provided in the (cryptographically signed) announcement.
    2) using the internal gpg signatures of the rpm package.

    1) execute the command
        md5sum <name-of-the-file.rpm>
       after you downloaded the file from a SUSE ftp server or its mirrors.
       Then, compare the resulting md5sum with the one that is listed in the
       announcement. Since the announcement containing the checksums is
       cryptographically signed (usually using the key security@suse.de),
       the checksums show proof of the authenticity of the package.
       We disrecommend to subscribe to security lists which cause the
       email message containing the announcement to be modified so that
       the signature does not match after transport through the mailing
       list software.
       Downsides: You must be able to verify the authenticity of the
       announcement in the first place. If RPM packages are being rebuilt
       and a new version of a package is published on the ftp server, all
       md5 sums for the files are useless.

    2) rpm package signatures provide an easy way to verify the authenticity
       of an rpm package. Use the command
        rpm -v --checksig <file.rpm>
       to verify the signature of the package, where <file.rpm> is the
       filename of the rpm package that you have downloaded. Of course,
       package authenticity verification can only target an un-installed rpm
       package file.
       Prerequisites:
        a) gpg is installed
        b) The package is signed using a certain key. The public part of this
           key must be installed by the gpg program in the directory
           ~/.gnupg/ under the user's home directory who performs the
           signature verification (usually root). You can import the key
           that is used by SUSE in rpm packages for SUSE Linux by saving
           this announcement to a file ("announcement.txt") and
           running the command (do "su -" to be root):
            gpg --batch; gpg < announcement.txt | gpg --import
           SUSE Linux distributions version 7.1 and thereafter install the
           key "build@suse.de" upon installation or upgrade, provided that
           the package gpg is installed. The file containing the public key
           is placed at the top-level directory of the first CD (pubring.gpg)
           and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


  - 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 announcements 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> or <security@suse.de>.
    The <security@suse.de> public key is listed below.
    =====================================================================
______________________________________________________________________________

    The information in this advisory may be distributed or reproduced,
    provided that the advisory is not modified in any way. In particular,
    it is desired that the clear-text signature shows proof of the
    authenticity of the text.
    SUSE Linux AG makes no warranties of any kind whatsoever with respect
    to the information contained in this security advisory.

Type Bits/KeyID    Date       User ID
pub  2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub  1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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-- 
~
~ perl self.pl
~ $_='print"\$_=\47$_\47;eval"';eval
~ krahmer@suse.de - SuSE Security Team
~

Sebastian Krahmer

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