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Mandrake: 'tcpdump' Multiple buffer overflows Print E-mail
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Posted by LinuxSecurity.com Team   
Mandrake Several buffer overflows were found in the tcpdump package by FreeBSD developers during a code audit, in versions prior to 3.5. However, newer versions of tcpdump, including 3.6.2, are also vulnerable to another buffer overflow in the AFS RPC decoding functions.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           tcpdump
Advisory ID:            MDKSA-2002:032
Date:                   May 16th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 Several buffer overflows were found in the tcpdump package by FreeBSD
 developers during a code audit, in versions prior to 3.5.  However,
 newer versions of tcpdump, including 3.6.2, are also vulnerable to
 another buffer overflow in the AFS RPC decoding functions, which was
 discovered by Nick Cleaton.  These vulnerabilities could be used by
 a remote attacker to crash the the tcpdump process or possibly even
 be exploited to execute arbitrary code as the user running tcpdump,
 which is usually root.

 The newer libpcap 0.6 has also been audited to make it more safe by
 implementing better buffer boundary checks in several functions.
________________________________________________________________________

References:

  http://www.ciac.org/ciac/bulletins/l-015.shtml
  ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:48.tcpdump.asc
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 a17ec464d576bdbd870dc6a5d25fc59d  7.1/RPMS/libpcap-0.6.2-3.2mdk.i586.rpm
 ed780612ab8620e84e8310432a5df0b9  7.1/RPMS/libpcap-devel-0.6.2-3.2mdk.i586.rpm
 a186519910760e36b7e50456412ab20e  7.1/RPMS/tcpdump-3.6.2-2.2mdk.i586.rpm
 5e6091d2f916b180ffc80d60e2005a49  7.1/SRPMS/libpcap-0.6.2-3.2mdk.src.rpm
 a997724147a333e27e72670bff28e5ee  7.1/SRPMS/tcpdump-3.6.2-2.2mdk.src.rpm

 Linux-Mandrake 7.2:
 e39a58560c3ec60a574c63dd9e383fda  7.2/RPMS/libpcap-0.6.2-3.2mdk.i586.rpm
 4600b4d1a435d17a77560a36e28ddc70  7.2/RPMS/libpcap-devel-0.6.2-3.2mdk.i586.rpm
 fc014253b27e44c8a230f936d7eadf9e  7.2/RPMS/tcpdump-3.6.2-2.2mdk.i586.rpm
 5e6091d2f916b180ffc80d60e2005a49  7.2/SRPMS/libpcap-0.6.2-3.2mdk.src.rpm
 a997724147a333e27e72670bff28e5ee  7.2/SRPMS/tcpdump-3.6.2-2.2mdk.src.rpm

 Mandrake Linux 8.0:
 d8deeabab302271054ecad942a14013e  8.0/RPMS/libpcap0-0.6.2-3.1mdk.i586.rpm
 b2aa6d27578b8699640b6ed2e76ba228  8.0/RPMS/libpcap0-devel-0.6.2-3.1mdk.i586.rpm
 16eac5435d8b8e1075c10d393a2914a5  8.0/RPMS/tcpdump-3.6.2-2.1mdk.i586.rpm
 4b1956a781b1185e693a26037d4804a5  8.0/SRPMS/libpcap-0.6.2-3.1mdk.src.rpm
 683c3b6f0ae7754090cbcf480cd731b0  8.0/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 4a4f5cca7fc50d1616b857b89afe3ae3  ppc/8.0/RPMS/libpcap0-0.6.2-3.1mdk.ppc.rpm
 11be44f15a54a9654cd48b5b8aed04ba  ppc/8.0/RPMS/libpcap0-devel-0.6.2-3.1mdk.ppc.rpm
 68255f8f80d88b91fd488d6379db81df  ppc/8.0/RPMS/tcpdump-3.6.2-2.1mdk.ppc.rpm
 4b1956a781b1185e693a26037d4804a5  ppc/8.0/SRPMS/libpcap-0.6.2-3.1mdk.src.rpm
 683c3b6f0ae7754090cbcf480cd731b0  ppc/8.0/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Mandrake Linux 8.1:
 39715d1c613144e859f0386ee583377a  8.1/RPMS/tcpdump-3.6.2-2.1mdk.i586.rpm
 683c3b6f0ae7754090cbcf480cd731b0  8.1/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 6331901e596e243099aa6474481ea88a  ia64/8.1/RPMS/tcpdump-3.6.2-2.1mdk.ia64.rpm
 683c3b6f0ae7754090cbcf480cd731b0  ia64/8.1/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Mandrake Linux 8.2:
 8c36a78c9a086c2d582d70d431533650  8.2/RPMS/tcpdump-3.6.2-2.1mdk.i586.rpm
 683c3b6f0ae7754090cbcf480cd731b0  8.2/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Mandrake Linux 8.2/ppc:
 081041c2713a9c76c5bf2fc727a03c45  ppc/8.2/RPMS/tcpdump-3.6.2-2.1mdk.ppc.rpm
 683c3b6f0ae7754090cbcf480cd731b0  ppc/8.2/SRPMS/tcpdump-3.6.2-2.1mdk.src.rpm

 Corporate Server 1.0.1:
 a17ec464d576bdbd870dc6a5d25fc59d  1.0.1/RPMS/libpcap-0.6.2-3.2mdk.i586.rpm
 ed780612ab8620e84e8310432a5df0b9  1.0.1/RPMS/libpcap-devel-0.6.2-3.2mdk.i586.rpm
 a186519910760e36b7e50456412ab20e  1.0.1/RPMS/tcpdump-3.6.2-2.2mdk.i586.rpm
 5e6091d2f916b180ffc80d60e2005a49  1.0.1/SRPMS/libpcap-0.6.2-3.2mdk.src.rpm
 a997724147a333e27e72670bff28e5ee  1.0.1/SRPMS/tcpdump-3.6.2-2.2mdk.src.rpm

 Single Network Firewall 7.2:
 e39a58560c3ec60a574c63dd9e383fda  snf7.2/RPMS/libpcap-0.6.2-3.2mdk.i586.rpm
 4600b4d1a435d17a77560a36e28ddc70  snf7.2/RPMS/libpcap-devel-0.6.2-3.2mdk.i586.rpm
 fc014253b27e44c8a230f936d7eadf9e  snf7.2/RPMS/tcpdump-3.6.2-2.2mdk.i586.rpm
 5e6091d2f916b180ffc80d60e2005a49  snf7.2/SRPMS/libpcap-0.6.2-3.2mdk.src.rpm
 a997724147a333e27e72670bff28e5ee  snf7.2/SRPMS/tcpdump-3.6.2-2.2mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

   http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig 

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other update advisories for Mandrake Linux at:

   http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

   http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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Version: GnuPG v1.0.5 (GNU/Linux)
Comment: For info see  http://www.gnupg.org

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