[security-announce] SUSE Security Summary Report SUSE-SR:2008:014

4 Jul 2008

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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2008:014
        Date:                   Fri, 04 Jul 2008 15:00:00 +0000
        Cross-References:       CVE-2004-0918, CVE-2008-0887, CVE-2008-1096
                                CVE-2008-1097, CVE-2008-1384, CVE-2008-1806
                                CVE-2008-1807, CVE-2008-1808, CVE-2008-1947
                                CVE-2008-2050, CVE-2008-2051, CVE-2008-2107
                                CVE-2008-2357, CVE-2008-2371, CVE-2008-2667
                                CVE-2008-2713

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - sudo not flushing stdin
            - courier-authlib SQL injection possibility
            - gnome-screensaver
            - clamav 0.93.1
            - php5 security update
            - ImageMagick, GraphicsMagick security problems
            - mtr potential remote overflow
            - bind root zone update
            - pcre buffer overflow
            - tomcat55 and tomcat6 cross site scripting problem
            - squid denial of service problem in ASN.1 parsing
            - freetype2 various integer overflows
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            None listed this week.
        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 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.

   - sudo not flushing stdin

     This update of sudo flushes the stdin buffer on password
     timeout. Unflushed buffers can lead to leaking the password via a
     parent process reading stdin after sudo exits.

     This issue only affects openSUSE 10.3 and was fixed there.

   - courier-authlib SQL injection possibility

     courier-authlib was updated to fix a bug that allowed SQL
     injections. (CVE-2008-2667)

     Only openSUSE 10.3 and 11.0 were affected.

   - gnome-screensaver

     Using gnome-screensaver an attacker could log in without a valid
     password if the NIS server is down. (CVE-2008-0887)

     gnome-screensaver was affected on SUSE Linux Enterprise 10, SUSE
     Linux 10.1, openSUSE 10.2 and 10.3 and was fixed there.

   - clamav 0.93.1

     Clamav was updated to version 0.93.1. It fixes various bugs and
     one minor security issue:

     CVE-2008-2713: libclamav/petite.c in ClamAV before 0.93.1 allows
     remote attackers to cause a denial of service via a crafted Petite
     file that triggers an out-of-bounds read.

     clamav was updated on all products containing clamav.

   - PHP 5 security update

     php5 was updated to fix various bugs and security problems:
     - possible stack-based buffer overflow CVE-2008-2050
     - incomplete escapeshellcmd() CVE-2008-2051
     - printf() integer overflow CVE-2008-1384
     - insecure GENERATE_SEED macro CVE-2008-2107
     - timezone update for DST in Pakistan

     On openSUSE 10.2 up to 11.0 php5 was updated to 5.2.6. For SUSE
     Linux Enterprise 10 SP1 and SP2 the fixes were backported.

   - ImageMagick, GraphicsMagick security problems

     ImageMagick and GraphicsMagick were affected by two security problems:

     CVE-2008-1096: Buffer overflow in the handling of XCF files
     CVE-2008-1097: Heap buffer overflow in the handling of PCX files

     ImageMagick was updated on all products. GraphicsMagick is only
     found on openSUSE 10.3 and 11.0 and was updated there.

   - mtr potential remote overflow

     MTR was updated to fix a stack based buffer overflow which could
     potentially be exploited by a remote attacker to execute arbitrary
     code (CVE-2008-2357).

     mtr was updated on all SUSE Linux based products.

   - bind root zone update

     The IP number for the "L" root DNS server changed.

     This patch updates the root.hint zone file to get the new IP number.

     This is only security related and not a true vulnerability since the
     old server is still operating correctly.

   - pcre buffer overflow

     Specially crafted regular expressions could lead to a buffer overflow
     in the pcre library. Applications using pcre to process regular
     expressions from untrusted sources could therefore potentially be
     exploited by attackers to execute arbitrary code (CVE-2008-2371).

     Only the pcre version on openSUSE 10.3 was affected by this problem
     and received fixed packages.

   - tomcat55 and tomcat6 cross site scripting problem

     tomcat was updated to fix a cross-site-scripting vulnerability in
     the host-manager. (CVE-2008-1947)

     Since the problem only affects tomcat 5.5 and tomcat 6 only those
     were fixed in openSUSE 10.3 and 11.0. Other products were not
     affected.

   - squid denial of service problem in ASN.1 parsing

     Squid was updated to fix an old denial-of-service bug that can
     occur while parsing ASN.1 data. (CVE-2004-0918)

     More details can be found on:
         http://www.squid-cache.org/Advisories/SQUID-2008_1.txt

     Only Squid 3.0 was affected, which is only on openSUSE 11.0 and
     was fixed there.

   - freetype2 various integer overflows

     This update of freetype2 fixes several potential vulnerabilities
     reported by iDefense.

     CVE-2008-1806: Integer overflow in FreeType2 allows context-dependent
     attackers to execute arbitrary code via a crafted set of 16-bit
     length values within the Private dictionary table in a Printer Font
     Binary (PFB) file, which triggers a heap-based buffer overflow.

     CVE-2008-1807: FreeType2 allow context-dependent attackers to execute
     arbitrary code via an invalid "number of axes" field in a Printer
     Font Binary (PFB) file, which triggers a free of arbitrary memory
     locations, leading to memory corruption.

     CVE-2008-1808: Multiple off-by-one errors in FreeType2 before 2.3.6
     allow context-dependent attackers to execute arbitrary code via
     (1) a crafted table in a Printer Font Binary (PFB) file or (2)
     a crafted SHC instruction in a TrueType Font (TTF) file, which
     triggers a heap-based buffer overflow.

     Freetype2 was updated on all distributions.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   None listed this week.
______________________________________________________________________________

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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