MandrakeSoft Information for VU#958321

Samba contains a remotely exploitable stack buffer overflow

Status

Affected

Vendor Statement

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________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           samba
Advisory ID:            MDKSA-2002:081
Date:                   November 25th, 2002

Affected versions:      8.1, 8.2, 9.0
________________________________________________________________________

Problem Description:

 A vulnerability in samba versions 2.2.2 through 2.2.6 was discovered
by the Debian samba maintainers.  A bug in the length checking for
encrypted password change requests from clients could be exploited
using a buffer overrun attack on the smbd stack.  This attack would
have to crafted in such a way that converting a DOS codepage string to
little endian UCS2 unicode would translate into an executable block of
code.

 This vulnerability has been fixed in samba version 2.2.7, and the
updated packages have had a patch applied to fix the problem.
________________________________________________________________________

References:

  http://www.samba.org/samba/whatsnew/samba-2.2.7.html
________________________________________________________________________

Updated Packages:

 Mandrake Linux 8.1:
b10451e71a1ba27d45956f57fb203118  8.1/RPMS/samba-2.2.2-3.3mdk.i586.rpm
22a6f9977518bbe2923ec7d2f68a698e  8.1/RPMS/samba-client-2.2.2-3.3mdk.i586.rpm
74d59e5578aaa0a23e760c828a6d8688  8.1/RPMS/samba-common-2.2.2-3.3mdk.i586.rpm
6d6a2835fd6e21b4c93dbaa5fe6f2d13  8.1/RPMS/samba-doc-2.2.2-3.3mdk.i586.rpm
4c7511781a263f633cab5bf1831ad69b  8.1/SRPMS/samba-2.2.2-3.3mdk.src.rpm

 Mandrake Linux 8.1/IA64:
2456e2af90d2e71e877a16f2ff034c73  ia64/8.1/RPMS/samba-2.2.2-3.3mdk.ia64.rpm
66043b111988d82d2800763950ea07e3  ia64/8.1/RPMS/samba-client-2.2.2-3.3mdk.ia64.rpm
6954d750eae921eece5e1e2ece9c42e5  ia64/8.1/RPMS/samba-common-2.2.2-3.3mdk.ia64.rpm
cf5545988b8d07299b776a25d6dc2e56  ia64/8.1/RPMS/samba-doc-2.2.2-3.3mdk.ia64.rpm
4c7511781a263f633cab5bf1831ad69b  ia64/8.1/SRPMS/samba-2.2.2-3.3mdk.src.rpm

 Mandrake Linux 8.2:
5552fadd8509fc7222099f88dad0f5a9  8.2/RPMS/nss_wins-2.2.3a-10.1mdk.i586.rpm
58da182a9a84a02010ddaf939e97bc7c  8.2/RPMS/samba-2.2.3a-10.1mdk.i586.rpm
91dcff33758dca1ca9a4779186a6917d  8.2/RPMS/samba-client-2.2.3a-10.1mdk.i586.rpm
ce98076728c73ca79b78fc9d69b94b47  8.2/RPMS/samba-common-2.2.3a-10.1mdk.i586.rpm
983c2de083b240971026bb054b449fde  8.2/RPMS/samba-doc-2.2.3a-10.1mdk.i586.rpm
fe4c7a8ebedede8ac10ff98eac2b84a5  8.2/RPMS/samba-swat-2.2.3a-10.1mdk.i586.rpm
ec00eed80e135dd79b56608bbd2c0574  8.2/RPMS/samba-winbind-2.2.3a-10.1mdk.i586.rpm
5677dee51659f50acee4e55346ca737d  8.2/SRPMS/samba-2.2.3a-10.1mdk.src.rpm

 Mandrake Linux 8.2/PPC:
32e41a8c06f1b5b24b13de0f65dfa3cc  ppc/8.2/RPMS/nss_wins-2.2.3a-10.1mdk.ppc.rpm
275bf7b8a2792e11bf94dc24557f8ebc  ppc/8.2/RPMS/samba-2.2.3a-10.1mdk.ppc.rpm
66232f77afcacc83090e3cf848717962  ppc/8.2/RPMS/samba-client-2.2.3a-10.1mdk.ppc.rpm
912ccb4cc81f89de6de871aa1c4833c0  ppc/8.2/RPMS/samba-common-2.2.3a-10.1mdk.ppc.rpm
af73612d4ea52c4a391ca75afd0dae8b  ppc/8.2/RPMS/samba-doc-2.2.3a-10.1mdk.ppc.rpm
2117cd7af96f6467c867faef73a425b6  ppc/8.2/RPMS/samba-swat-2.2.3a-10.1mdk.ppc.rpm
ab0402b7173a04be1cbc6c415807b98a  ppc/8.2/RPMS/samba-winbind-2.2.3a-10.1mdk.ppc.rpm
5677dee51659f50acee4e55346ca737d  ppc/8.2/SRPMS/samba-2.2.3a-10.1mdk.src.rpm

 Mandrake Linux 9.0:
25b264e1b5ee43b26d861f5b5e07d7d2  9.0/RPMS/nss_wins-2.2.7-2.1mdk.i586.rpm
619a0506a84d25099ca0653be0f5fd3a  9.0/RPMS/samba-client-2.2.7-2.1mdk.i586.rpm
d7ed710067f71285cc616fe07efd7753  9.0/RPMS/samba-common-2.2.7-2.1mdk.i586.rpm
2b5667097a398ef87e9e721c26bb613b  9.0/RPMS/samba-doc-2.2.7-2.1mdk.i586.rpm
ff124b4103dd84e51f5be82dd9244b1f  9.0/RPMS/samba-server-2.2.7-2.1mdk.i586.rpm
a7b976a81f59d7ce7111cb5f44d89bcd  9.0/RPMS/samba-swat-2.2.7-2.1mdk.i586.rpm
0859d8665e9d2ea2f1f96365a7456e3f  9.0/RPMS/samba-winbind-2.2.7-2.1mdk.i586.rpm
b93cd8ca9319a628ee7015bbd5d2196e  9.0/SRPMS/samba-2.2.7-2.1mdk.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 <filename>

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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Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References

None

Addendum

The CERT/CC has no additional comments at this time.

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