[security-announce] SUSE Security Summary Report SUSE-SR:2007:014

20 Jul 2007

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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2007:014
        Date:                   Fri, 20 Jul 2007 12:00:00 +0000
        Cross-References:       CVE-2005-4835, CVE-2006-4168, CVE-2006-7177
                                CVE-2006-7178, CVE-2006-7179, CVE-2006-7180
                                CVE-2007-0720, CVE-2007-1558, CVE-2007-2447
                                CVE-2007-2645, CVE-2007-2829, CVE-2007-2830
                                CVE-2007-2831, CVE-2007-2948, CVE-2007-3257,
                                CVE-2007-3372

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - MPlayer CDDB handling buffer overflow
            - madwifi site remote denial of service problems
            - samba bugfix regression update
            - cups denial of service regression fix
            - libexif denial of service problems
            - evolution IMAP SEQUENCE buffer overflow
            - mutt APOP password disclosure problem
            - avahi local denial of service
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - Mozilla Firefox/Thunderbird/Seamonkey update
        3) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Solved Security Vulnerabilities

   To avoid flooding mailing lists with SUSE Security Announcements for minor
   issues, SUSE Security releases weekly summary reports for the low profile
   vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
   or download URLs like the SUSE Security Announcements that are released for
   more severe vulnerabilities.

   Fixed packages for the following incidents are already available on our FTP
   server and via the YaST Online Update.

   - MPlayer CDDB handling buffer overflow

     A buffer overflow in parsing of CDDB entries was fixed in MPlayer.
     This could be exploited by malicious CDDB servers to inject
     code. (CVE-2007-2948)

     MPlayer is only SUSE Linux Desktop 1.0 and an update was released
     for this product.

   - Madwifi site remote denial of service problems

     The madwifi driver and userland packages were updated to 0.9.3.1
     to fix several denial of service problems.

     Due to versioning problems that would have caused the madwifi KMP
     RPMs not to be installed the RPM version still says "0.9.3", the
     content is the 0.9.3.1 version.

     This update fixes following security problems:

     CVE-2007-2829: The 802.11 network stack in net80211/ieee80211_input.c
     in Madwifi before 0.9.3.1 allows remote attackers to cause a denial
     of service (system hang) via a crafted length field in nested
     802.3 Ethernet frames in Fast Frame packets, which results in a
     NULL pointer dereference.

     CVE-2007-2830: The ath_beacon_config function in if_ath.c in Madwifi
     before 0.9.3.1 allows remote attackers to cause a denial of service
     (system crash) via crafted beacon interval information when scanning
     for access points, which triggers a divide-by-zero error.

     CVE-2007-2831: Array index error in the (1) ieee80211_ioctl_getwmmparams
     and (2) ieee80211_ioctl_setwmmparams functions in
     net80211/ieee80211_wireless.c in Madwifi before 0.9.3.1 allows local
     users to cause a denial of service (system crash), possibly obtain
     kernel memory contents, and possibly execute arbitrary code via a
     large negative array index value.

     "remote attackers" for this problem are attackers within range of
     the WiFi reception of the card.

     Please note that the problems fixed in 0.9.3 were fixed by the
     madwifi Version upgrade to 0.9.3 in the SUSE Linux Enterprise Desktop
     Service Pack 1 already but not listed in a separate advisory.
     (CVE-2005-4835, CVE-2006-7177, CVE-2006-7178, CVE-2006-7179,
     CVE-2006-7180).

     Only SUSE Linux Desktop 10 contains the affected madwifi driver.

   - Samba bugfix regression update

     A samba update was released that fixes several regressions introduced
     by an earlier security update.

     The previous security fix for CVE-2007-2447 missed one character
     in the shell escape handling.

     Also fixed were some non-security related regressions introduced by the
     previous update.

   - cups denial of service regression fix

     CUPS packages were released to fix another denial of service problem
     introduced by the previous Denial of Service Fix for CVE-2007-0720, which was
     incomplete.

     All SUSE Linux based products were affected.

   - libexif denial of service problems

     Two security problems were fixed in libexif.

     CVE-2007-2645: A denial of service problem (crash) was fixed in the
     EXIF Loader of libexif, which could be used to crash the browser or
     image viewer when it interprets the EXIF tags in prepared JPEG files.

     CVE-2006-4168: An integer overflow during loading EXIF entries was
     fixed that could lead to a denial of service (crash) or potential
     code execution.

     All SUSE Linux based products containing libexif and libexif5 were affected.

   - evolution IMAP SEQUENCE buffer overflow

     A security problem was fixed in the evolution / evolution-data-server
     package, where  a malicious IMAP server could execute code
     within evolution by sending a malformed response to a SEQUENCE
     command. (CVE-2007-3257)

     This affects all SUSE Linux based products containing evolution.

   - mutt APOP password disclosure problem
     This update of mutt fixes a vulnerability in the APOP implementation
     that allows an active attacker to guess three bytes of the password.
     (CVE-2007-1558)

     All SUSE Linux based products containing mutt were affected and fixed.

   - avahi local denial of service

     A security problem was fixed in avahi, where local attackers could
     send empty TXT data via D-BUS, causing the avahi daemon to exit.

     This issue has been assigned the Mitre CVE ID CVE-2007-3372 and
     it was fixed for SUSE Linux Enterprise 10, SUSE Linux 10.1 and
     openSUSE 10.2.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   - Mozilla Firefox/Thunderbird/Seamonkey update
     Mozilla Firefox and Thunderbird 2.0.0.5 have been released and fix
     various security issues.

     We are currently preparing updates.
______________________________________________________________________________

3) Authenticity Verification and Additional Information

  - Announcement authenticity verification:

    SUSE security announcements are published via mailing lists and on Web
    sites. The authenticity and integrity of a SUSE security announcement is
    guaranteed by a cryptographic signature in each announcement. All SUSE
    security announcements are published with a valid signature.

    To verify the signature of the announcement, save it as text into a file
    and run the command

      gpg --verify <file>

    replacing <file> with the name of the file containing the announcement.
    The output for a valid signature looks like:

      gpg: Signature made <DATE> using RSA key ID 3D25D3D9
      gpg: Good signature from "SuSE Security Team <security@suse.de>"

    where <DATE> is replaced by the date the document was signed.

    If the security team's key is not contained in your key ring, you can
    import it from the first installation CD. To import the key, use the
    command

      gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

  - Package authenticity verification:

    SUSE update packages are available on many mirror FTP servers all over the
    world. While this service is considered valuable and important to the free
    and open source software community, the authenticity and integrity of a
    package needs to be verified to ensure that it has not been tampered with.

    The internal 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, replacing <file.rpm> with the
    filename of the RPM package downloaded. The package is unmodified if it
    contains a valid signature from build@suse.de with the key ID 9C800ACA.

    This key is automatically imported into the RPM database (on RPMv4-based
    distributions) and the gpg key ring of 'root' during installation. You can
    also find it on the first installation CD and included at the end of this
    announcement.

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

    opensuse-security@opensuse.org
        -   General Linux and SUSE security discussion.
            All SUSE security announcements are sent to this list.
            To subscribe, send an e-mail to
                <opensuse-security+subscribe@opensuse.org>.

    opensuse-security-announce@opensuse.org
        -   SUSE's announce-only mailing list.
            Only SUSE's security announcements are sent to this list.
            To subscribe, send an e-mail to
                <opensuse-security-announce+subscribe@opensuse.org>.

    =====================================================================
    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, the
    clear text signature should show proof of the authenticity of the text.

    SUSE Linux Products GmbH provides 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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Marcus Meissner

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