Message-ID: <44d9f5f0.52OYvMY1MRpBANQZ%ludwig.nussel@suse.de>
Date: Wed, 09 Aug 2006 16:49:20 +0200
From: Ludwig Nussel <ludwig.nussel@...e.de>
To: bugtraq@...urityfocus.com
Subject: SUSE Security Announcement: clamav (SUSE-SA:2006:046)


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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                clamav
        Announcement ID:        SUSE-SA:2006:046
        Date:                   Wed, 09 Aug 2006 16:00:00 +0000
        Affected Products:      SUSE LINUX 10.1
                                SUSE LINUX 10.0
                                SUSE LINUX 9.3
                                SUSE LINUX 9.2
                                SUSE SLES 10
                                SUSE SLES 9
        Vulnerability Type:     remote code execution
        Severity (1-10):        5
        SUSE Default Package:   no
        Cross-References:       CVE-2006-4018

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             clamav heap buffer overflow
           Problem Description
        2) Solution or Work-Around
        3) Special Instructions and Notes
        4) Package Location and Checksums
        5) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - See SUSE Security Summary Report
        6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

   Damian Put discovered a bug in the UPX decoder used for scanning UPX
   compressed Windows executables. The bug allows for a heap buffer
   overflow and may potentially be exploitable to execute arbitrary
   code. ClamAV has been version updated to version 0.88.4 in order to
   fix this problem.

2) Solution or Work-Around

   There is no known workaround, please install the update packages.

3) Special Instructions and Notes

   If you use clamd or freshclam please restart them after the update
   if that didn't happen automatically.

4) Package Location and Checksums

   The preferred method for installing security updates is to use the YaST
   Online Update (YOU) tool. YOU detects which updates are required and
   automatically performs the necessary steps to verify and install them.
   Alternatively, download the update packages for your distribution manually
   and verify their integrity by the methods listed in Section 6 of this
   announcement. Then install the packages using the command

     rpm -Fhv <file.rpm>

   to apply the update, replacing <file.rpm> with the filename of the
   downloaded RPM package.

   
   x86 Platform:
   
   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/clamav-0.88.4-0.2.i586.rpm
          d782f3c2ec62fca80cbb1f2bb531b758
   
   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/clamav-0.88.4-0.1.i586.rpm
          2506a173ae698bbb85077edd252bd537
   
   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/clamav-0.88.4-0.1.i586.rpm
          0cd9e4ae7f3aeeff26cad68d2fbd4ea9
   
   SUSE LINUX 9.2:
   ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/clamav-0.88.4-0.1.i586.rpm
          1f2c24cc49f1bec6b8bf1f4ad0e3be04
   
   Power PC Platform:
   
   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/clamav-0.88.4-0.2.ppc.rpm
          466de7dbb509ed9e1d049fe4d1748d6c
   
   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/clamav-0.88.4-0.1.ppc.rpm
          294827d288e5d409fbcbe80b1bcd4a01
   
   x86-64 Platform:
   
   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/clamav-0.88.4-0.2.x86_64.rpm
          92bd2caca792c63f3e074998e0f2966e
   
   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/clamav-0.88.4-0.1.x86_64.rpm
          e200bb4c9de2706d4a549869fea85dc6
   
   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/clamav-0.88.4-0.1.x86_64.rpm
          4ff1d40fc1721bb6d4930c582ad27bfd
   
   SUSE LINUX 9.2:
   ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/clamav-0.88.4-0.1.x86_64.rpm
          4fdf8b51963cd0460b7a2febf056003c
   
   Sources:
   
   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/clamav-0.88.4-0.2.src.rpm
          071e56397a105c1ec8fb99937aba6b7d
   
   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/clamav-0.88.4-0.1.src.rpm
          183529f6fb8098c5cd592bfaf0841f5d
   
   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/clamav-0.88.4-0.1.src.rpm
          95fd6765b9ac67100b81ac321daf2867
   
   SUSE LINUX 9.2:
   ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/clamav-0.88.4-0.1.src.rpm
          0759b1e53d0148b2ad372d33ed3d1135
   
   Our maintenance customers are notified individually. The packages are
   offered for installation from the maintenance web:
   
   SUSE SLES 9
     http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/3320ba39bded04bc189797cf280a3313.html
   
   SUSE SLES 10
     http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/3320ba39bded04bc189797cf280a3313.html
   
______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

   - See SUSE Security Summary Report
     

______________________________________________________________________________

6) 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 where you saved 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@...e.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 the integrity of
    a package needs to be verified to ensure that it has not been tampered
    with.

    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) Using the internal gpg signatures of the rpm package
    2) MD5 checksums as provided in this announcement

    1) 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@...e.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 at
       the end of this announcement.

    2) If you need an alternative means of verification, use the md5sum
       command to verify the authenticity of the packages. Execute the command

         md5sum <filename.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
       SUSE security announcement. Because the announcement containing the
       checksums is cryptographically signed (by security@...e.de), the
       checksums show proof of the authenticity of the package if the
       signature of the announcement is valid. Note that the md5 sums
       published in the SUSE Security Announcements are valid for the
       respective packages only. Newer versions of these packages cannot be
       verified.

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

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

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

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

    =====================================================================
    SUSE's security contact is <security@...e.com> or <security@...e.de>.
    The <security@...e.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@...e.de>
pub  1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@...e.de>

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