CERT/CC Vulnerability Note VU#298233

Overview

A buffer overflow vulnerability has been discovered in Samba. An updated version has been released.

Description

A remotely exploitable buffer overflow vulnerability was discoved to affect Samba versions 2.0.x through 2.2.7a. From their bulletin:

The SuSE security audit team, in particular Sebastian Krahmer, has found a flaw in the Samba main smbd code which could allow an external attacker to remotely and anonymously gain Super User (root) privileges on a server running a Samba server.

This flaw exists in previous versions of Samba from 2.0.x to 2.2.7a inclusive. This is a serious problem and all sites should either upgrade to Samba 2.2.8 immediately or prohibit access to TCP ports 139 and 445. Advice created by Andrew Tridgell, the leader of the Samba Team, on how to protect an unpatched Samba server is given at the end of this section.

The SMB/CIFS protocol implemented by Samba is vulnerable to many attacks, even without specific security holes. The TCP ports 139 and the new port 445 (used by Win2k and the Samba 3.0 alpha code in particular) should never be exposed to untrusted networks.

Impact

A remote attacker may be able to execute arbitrary code with the privileges of the Super User, typically root.

Solution

Upgrade to Samba version 2.2.8.

The "Protecting an unpatched Samba server" section of the Samba bulletin discusses several work arounds for unpatched servers.

Vendor Information

298233

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Apple Computer Inc. Affected

Updated: March 25, 2003

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

APPLE-SA-2003-03-24 Samba, OpenSSL

Security Update 2003-03-24 is now available. It contains fixes for
recent vulnerabilities in:

* OpenSSL: Fixes CAN-2003-0147, a timing attack on RSA keys.

* Samba: Fixes CAN-2003-0085 and CAN-2003-0086 which could allow
unauthorized remote access to the host system. The built-in Windows
file sharing in Mac OS X is based on Samba. Windows file sharing is
off by default in Mac OS X, but it is recommended that all users
install this Security Update.

Note: This update only applies the security fixes to the
currently-shipping 2.2.3 version of Samba on Mac OS X 10.2.4, and the
Samba version is otherwise unchanged. The presence of the following
file indicates that the update has been applied:
/Library/Receipts/SecurityUpd2003-03-24.pkg

Affected systems: Mac OS X 10.2.4 and earlier
Mac OS X Server 10.2.4 and earlier

System requirements: Mac OS X 10.2.4 or Mac OS X Server 10.2.4

Customers with earlier Mac OS X versions are encouraged to either
upgrade to Mac OS X 10.2.4, or visit the Samba and OpenSSL web sites
for information on the available fixes.

Security Update 2003-03-24 may be obtained from:

* Software Update pane in System Preferences

* Apple's Software Downloads web site:
http://www.info.apple.com/kbnum/n120199

To help verify the integrity of Security Update 2003-03-24 from the
Software Downloads web site:

The download file is titled: SecurityUpd2003-03-24.dmg
Its SHA-1 digest is: 0a80081453bca85493fcbaccd6adad222b41809e

Information will also be posted to the Apple Product Security web site:
http://www.apple.com/support/security/security_updates.html

This message is signed with Apple's Product Security PGP key, and
details are available at:
http://www.apple.com/support/security/security_pgp.html

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Vendor Information

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

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Conectiva Affected

Debian Affected

FreeBSD Affected

Updated: April 10, 2003

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

=============================================================================
FreeBSD-SN-03:01 Security Notice
The FreeBSD Project

Topic: security issue in samba ports
Announced: 2003-04-07

I. Introduction

Several ports in the FreeBSD Ports Collection are affected by security
issues. These are listed below with references and affected versions.
All versions given refer to the FreeBSD port/package version numbers.
The listed vulnerabilities are not specific to FreeBSD unless
otherwise noted.

These ports are not installed by default, nor are they ``part of
FreeBSD'' as such. The FreeBSD Ports Collection contains thousands of
third-party applications in a ready-to-install format. FreeBSD makes
no claim about the security of these third-party applications. See
<URL:http://www.freebsd.org/ports/> for more information about the
FreeBSD Ports Collection.

II. Ports

+------------------------------------------------------------------------+
Port name: net/samba
Affected: versions < samba-2.2.8_2, samba-2.2.8a
Status: Fixed

Two vulnerabilities recently:

(1) Sebastian Krahmer of the SuSE Security Team identified
vulnerabilities that could lead to arbitrary code execution as root,
as well as a race condition that could allow overwriting of system
files. (This vulnerability was previously fixed in Samba 2.2.8.)

(2) Digital Defense, Inc. reports: ``This vulnerability, if exploited
correctly, leads to an anonymous user gaining root access on a Samba
serving system. All versions of Samba up to and including Samba 2.2.8
are vulnerable. Alpha versions of Samba 3.0 and above are *NOT*
vulnerable.''

<URL: http://us1.samba.org/samba/whatsnew/samba-2.2.8.html >
<URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0085 >
<URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0086 >
<URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0196 >
<URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0201 >
+------------------------------------------------------------------------+
Port name: net/samba-tng
Affected: all versions
Status: Not fixed

Some or all of the vulnerabilities affecting Samba may also affect
Samba-TNG. No confirmation or official patches are available at the
time of this security notice.
+------------------------------------------------------------------------+

III. Upgrading Ports/Packages

To upgrade a fixed port/package, perform one of the following:

1) Upgrade your Ports Collection and rebuild and reinstall the port.
Several tools are available in the Ports Collection to make this
easier. See:
/usr/ports/devel/portcheckout
/usr/ports/misc/porteasy
/usr/ports/sysutils/portupgrade

2) Deinstall the old package and install a new package obtained from

[FreeBSD 4.x, i386]
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/All/

[FreeBSD 5.x, i386]
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/All/

Packages are not automatically generated for other architectures at
this time.

Note that new, official packages may not be available on all mirrors
immediately. In the interim, Security Officer-generated packages (and
detached digital signatures) are available for the i386 architecture
at:

[FreeBSD 4.x, i386]
ftp://ftp2.FreeBSD.org/pub/FreeBSD/security-officer/ports/i386/packages-4-stable/samba-2.2.8_2.tgz
ftp://ftp2.FreeBSD.org/pub/FreeBSD/security-officer/ports/i386/packages-4-stable/samba-2.2.8_2.tgz.asc

[FreeBSD 5.x]
ftp://ftp2.FreeBSD.org/pub/FreeBSD/security-officer/ports/i386/packages-5-current/samba-2.2.8_2.tbz
ftp://ftp2.FreeBSD.org/pub/FreeBSD/security-officer/ports/i386/packages-5-current/samba-2.2.8_2.tbz.asc

+------------------------------------------------------------------------+
FreeBSD Security Notices are communications from the Security Officer
intended to inform the user community about potential security issues,
such as bugs in the third-party applications found in the Ports
Collection, which will not be addressed in a FreeBSD Security
Advisory.

Feedback on Security Notices is welcome at <security-team@FreeBSD.org>.
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Vendor Information

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

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Gentoo Linux Affected

Hewlett-Packard Company Affected

IBM Affected

MandrakeSoft Affected

MontaVista Software Affected

OpenPKG Affected

Updated: March 19, 2003

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

________________________________________________________________________
OpenPKG Security Advisory The OpenPKG Projecthttp://www.openpkg.org/security.html http://www.openpkg.orgopenpkg-security@openpkg.org openpkg@openpkg.org OpenPKG-SA-2003.021 18-Mar-2003 ________________________________________________________________________
Package: samba Vulnerability: remote root exploit / chown race condition OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= samba-2.2.7a-20030207 >= samba-2.2.8-20030316 OpenPKG 1.2 <= samba-2.2.7a-1.2.0 >= samba-2.2.7a-1.2.1 OpenPKG 1.1 <= samba-2.2.5-1.1.1 >= samba-2.2.5-1.1.2
Dependent Packages: none
Description: Sebastian Krahmer, SuSE Security Team, [0] has alerted the Samba Team to two serious vulnerabilities in all versions of Samba [1] up to and including version 2.2.7a. We have backported the security relevant pieces of the 2.2.8 vendor changes into releases used by OpenPKG.
If exploited correctly, it could lead to an anonymous user gaining root access on a Samba serving system. All versions of Samba up to and including Samba 2.2.7a are vulnerable. The Common Vulnerabilities and Exposures (CVE) project assigned the id CAN-2003-0085 [2] to the problem.
In addition he pointed out a chown(2) race condition which could allow overwriting of critical system files if exploited. The Common Vulnerabilities and Exposures (CVE) project assigned the id CAN-2003-0086 [3] to the problem.
Please check whether you are affected by running "<prefix>/bin/rpm -q samba". If you have the "samba" package installed and its version is affected (see above), we recommend that you immediately upgrade it (see Solution). [4][5]
Solution: Select the updated source RPM appropriate for your OpenPKG release [6][7], fetch it from the OpenPKG FTP service [8][9] or a mirror location, verify its integrity [10], build a corresponding binary RPM from it [4] and update your OpenPKG installation by applying the binary RPM [5]. For the current release OpenPKG 1.2, perform the following operations to permanently fix the security problem (for other releases adjust accordingly).
$f t p f t p . o p e n p k g . o r g f t p > b i n f t p > c d r e l e a s e / 1.2 / U P D f t p > g e t s a m b a - 2.2 .7 a - 1.2 .1 . s r c . r p m f t p > b y e$ <prefix>/bin/rpm -v --checksig samba-2.2.7a-1.2.1.src.rpm $< p r e f i x > / b i n / r p m - - r e b u i l d s a m b a - 2.2 .7 a - 1.2 .1 . s r c . r p m$ su - # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/samba-2.2.7a-1.2.1.*.rpm ________________________________________________________________________
References: [0]http://www.suse.de/de/security/ [1]http://www.samba.org/ [2]http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0085 [3]http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0086 [4]http://www.openpkg.org/tutorial.html#regular-source [5]http://www.openpkg.org/tutorial.html#regular-binary [6]ftp://ftp.openpkg.org/release/1.1/UPD/samba-2.2.5-1.1.2.src.rpm [7]ftp://ftp.openpkg.org/release/1.2/UPD/samba-2.2.7a-1.2.1.src.rpm [8]ftp://ftp.openpkg.org/release/1.1/UPD/ [9]ftp://ftp.openpkg.org/release/1.2/UPD/ [10]http://www.openpkg.org/security.html#signature________________________________________________________________________
For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <openpkg@openpkg.org>" (ID 63C4CB9F) of the OpenPKG project which you can find under the official URLhttp://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To check the integrity of this advisory, verify its digital signature by using GnuPG (http://www.gnupg.org/). For instance, pipe this message to the command "gpg --verify --keyserver keyserver.pgp.com". ________________________________________________________________________
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Vendor Information

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

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Red Hat Inc. Affected

SGI Affected

Updated: March 20, 2003

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________
SGI Security Advisory

Title : SMB/CIFS Security Vulnerability in Samba
Number : 20030302-01-I
Date : March 19, 2003
Reference: CVE CAN-2003-0085
Reference: CVE CAN-2003-0086
Reference: SGI BUGS 883509 884044
Fixed in : Samba version 2.2.8

______________________________________________________________________________

- -----------------------
- --- Issue Specifics ---
- -----------------------

It's been reported that there is a SMB/CIFS packet fragment re-assembly code
vulnerability in versions of Samba prior to version 2.2.8. A successful
exploit of this vulnerability could allow an external attacker to remotely
and anonymously gain root privilege on a system running the Samba server.

See http://us1.samba.org/samba/whatsnew/samba-2.2.8.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0085
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0086
for more details.

SGI has investigated the issues and recommends the following steps for
neutralizing the exposure. It is HIGHLY RECOMMENDED that these measures be
implemented on ALL vulnerable SGI systems.

These issues have been corrected in Samba version 2.2.8.

- --------------
- --- Impact ---
- --------------

Samba is an optional product and is not installed by default on IRIX 6.5
systems.

To determine the version of IRIX you are running, execute the following
command:

# /bin/uname -R

That will return a result similar to the following:

# 6.5 6.5.16f

The first number ("6.5") is the release name, the second ("6.5.16f" in this
case) is the extended release name. The extended release name is the
"version" we refer to throughout this document.

To see if Samba is installed, execute the following command:

% versions samba_irix
I = Installed, R = Removed

Name Date Description

I samba_irix 07/02/2002 Samba 2.2.4 for IRIX
I samba_irix.man 07/02/2002 Samba Online Documentation
I samba_irix.man.doc 07/02/2002 Samba 2.2.4 Documentation
I samba_irix.man.manpages 07/02/2002 Samba 2.2.4 Man Page
I samba_irix.man.relnotes 07/02/2002 Samba 2.2.4 Release Notes
I samba_irix.src 07/02/2002 Samba Source Code
I samba_irix.src.samba 07/02/2002 Samba 2.2.4 Source Code
I samba_irix.sw 07/02/2002 Samba Execution Environment
I samba_irix.sw.base 07/02/2002 Samba 2.2.4 Execution Environment

If the result is similar to the above and the version shown is less than
2.2.8, then the system is vulnerable.

- ----------------------------
- --- Temporary Workaround ---
- ----------------------------

Though it is possible to limit exposure by filtering what IPs can talk to
your Samba server, there is no effective workaround to fully address these
problems. SGI recommends upgrading to Samba version 2.2.8.

- ----------------
- --- Solution ---
- ----------------

SGI has provided an instable version of Samba for this vulnerability. Our
recommendation is to upgrade to Samba version 2.2.8.

The free unsupported Samba 2.2.8 version can be currently downloaded
from the following websites:
http://freeware.sgi.com/beta/fw_samba-2.2.8.tardist
http://master.samba.org/samba/ftp/Binary_Packages/IRIX/

For customers who have purchased the SGI supported version of Samba
called samba_irix, please contact your SGI Support Representative and
request CD part number 812-0893-010 -- Samba 2.2.8 for IRIX on CD.

- ------------------------
- --- Acknowledgments ----
- ------------------------

SGI wishes to thank the Sebastian Krahmer, the SuSE security team, the Samba
Group and the users of the Internet Community at large for their assistance
in this matter.

- -------------
- --- Links ---
- -------------

SGI Security Advisories can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/advisories/

SGI Security Patches can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/patches/

SGI patches for IRIX can be found at the following patch servers:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/

SGI freeware updates for IRIX can be found at:
http://freeware.sgi.com/

SGI fixes for SGI open sourced code can be found on:
http://oss.sgi.com/projects/

SGI patches and RPMs for Linux can be found at:
http://support.sgi.com/linux/ or
http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/

SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/nt/

IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/

IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/colls/patches/tools/relstream/index.html

IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/irix/swupdates/

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com (216.32.174.211). Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

For security and patch management reasons, ftp.sgi.com (mirrors
patches.sgi.com security FTP repository) lags behind and does not do a
real-time update.

- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------

If there are questions about this document, email can be sent to
security-info@sgi.com.

------oOo------

SGI provides security information and patches for use by the entire SGI
community. This information is freely available to any person needing the
information and is available via anonymous FTP and the Web.

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com (216.32.174.211). Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

The SGI Security Headquarters Web page is accessible at the URL:
http://www.sgi.com/support/security/

For issues with the patches on the FTP sites, email can be sent to
security-info@sgi.com.

For assistance obtaining or working with security patches, please
contact your SGI support provider.

------oOo------

SGI provides a free security mailing list service called wiretap and
encourages interested parties to self-subscribe to receive (via email) all
SGI Security Advisories when they are released. Subscribing to the mailing
list can be done via the Web
(http://www.sgi.com/support/security/wiretap.html) or by sending email to
SGI as outlined below.

% mail wiretap-request@sgi.com
subscribe wiretap <YourEmailAddress such as midwatch@sgi.com >
end
^d

In the example above, <YourEmailAddress> is the email address that you wish
the mailing list information sent to. The word end must be on a separate
line to indicate the end of the body of the message. The control-d (^d) is
used to indicate to the mail program that you are finished composing the
mail message.

------oOo------

SGI provides a comprehensive customer World Wide Web site. This site is
located at http://www.sgi.com/support/security/ .

------oOo------

If there are general security questions on SGI systems, email can be sent to
security-info@sgi.com.

For reporting *NEW* SGI security issues, email can be sent to
security-alert@sgi.com or contact your SGI support provider. A support
contract is not required for submitting a security report.

______________________________________________________________________________
This information is provided freely to all interested parties
and may be redistributed provided that it is not altered in any
way, SGI is appropriately credited and the document retains and
includes its valid PGP signature.

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Vendor Information

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

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Samba Team Affected

SuSE Inc. Affected

Updated: March 19, 2003

Status

Affected

Vendor Statement

-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________
SuSE Security Announcement
Package: samba, samba-client Announcement-ID: SuSE-SA:2003:016 Date: Wednesday, March 19th 12:00 MET Affected products: 7.1, 7.2, 7.3, 8.0, 8.1 SuSE Linux Database Server SuSE eMail Server 3.1 SuSE eMail Server III SuSE Firewall Adminhost VPN SuSE Linux Admin-CD for Firewall SuSE Firewall on CD 2 - VPN SuSE Firewall on CD 2 SuSE Linux Enterprise Server for S/390 SuSE Linux Connectivity Server SuSE Linux Enterprise Server 7 SuSE Linux Enterprise Server 8 SuSE Linux Office Server Vulnerability Type: remote command execution Severity (1-10): 7 SuSE default package: No Cross References: http://www.samba.org CAN-2003-0085 CAN-2003-0086
Content of this advisory: 1) security vulnerability resolved: buffer overflows and a chown race condition in the smbd server, buffer overflow in the samba client problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - wget 3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information

Sebastian Krahmer, SuSE Security Team, reviewed security-critical parts of the Samba server within the scope of security audits that the SuSE Security Team conducts on a regular basis for security-critical Open Source Software. Buffer overflows and a chown race condition have been discovered and fixed during the security audit. The buffer overflow vulnerabilitiy allows a remote attacker to execute arbitrary commands as root on the system running samba. In addition to the flaws fixed in the samba server, some overflow conditions in the samba-client package have been fixed with the available update packages. It is strongly recommended to install the update packages on a system where the samba package is used.
There exists no temporary workaround against this vulnerability other than shutting down the smbd daemon.
We would like to thank the Samba Team, especially Jeremy Allison, Andrew Bartlett and Volker Lendecke for their quick response and cooperation.
Please note that the package names for SuSE products vary for different products. There exist the following pairings: server client ---------------------------- samba smbclnt samba samba-client samba-classic samba-classic-client samba-ldap samba-ldap-client
To find out which packages are installed on your system, you may run the following command:
rpm -qa|egrep '(samba|smbclnt)'
Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web.
SPECIAL INSTALL INSTRUCTIONS: ============================== After successfully installing the update packages, you should restart the samba server process(es) to make the changes in the system effective. If you do not have a samba server running on your system, no further action is required. If you have a samba server running, please run the following command as root:
rcsmb restart

Intel i386 Platform:
SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-2.2.5-160.i586.rpm deae19fe6dc1fd519c9219e791983128 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-client-2.2.5-160.i586.rpm dac659a9c774ed1e0f8cea04e5b287ee patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-2.2.5-160.i586.patch.rpm 1fdedee145fd35ad30ef078182bfcdeb ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-client-2.2.5-160.i586.patch.rpm 7bf4707c05c477db610f2a79b48b51a5 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/samba-2.2.5-160.src.rpm f62e0b9ffb00058ec4be67746903a4cc
SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/samba-2.2.3a-169.i386.rpm 519550b7d4a52f63ca858f1f58c283aa ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/samba-client-2.2.3a-169.i386.rpm daeb00edf26acfcbad92bae602689d42 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/samba-2.2.3a-169.i386.patch.rpm faf4c352d880b1f1be4baa3e8079243f ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/samba-client-2.2.3a-169.i386.patch.rpm 7bbcc81d79bebff8103c37f8cb8565dc source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/samba-2.2.3a-169.src.rpm daf838ccb337ca0863c65a9439e7ef7a
SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/samba-2.2.1a-213.i386.rpm 368e2d0190b4520965a79bf836eaaa2d ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/samba-client-2.2.1a-213.i386.rpm 06070925fd5cb40bc3f2985a5d64eff1 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/samba-2.2.1a-213.src.rpm af94d5ba0977e69de416fef54980a04d
SuSE-7.2: ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/samba-2.2.0a-48.i386.rpm 6300d1278311145e69522d58bde5aaf8 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/smbclnt-2.2.0a-48.i386.rpm 2553481e90b85a616c25580eb2875ea4 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/samba-2.2.0a-48.src.rpm 0d7397de281f100163fa105c972b387d
SuSE-7.1: ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/samba-2.0.10-27.i386.rpm 1eb26f1ef80681ec479a9028d51647bf ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/smbclnt-2.0.10-27.i386.rpm fa2a4d306536dd90a31677487996f2e0 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/samba-2.0.10-27.src.rpm 1cd317f5749de96e432fee19310ea6f6

Sparc Platform:
SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n2/samba-2.2.1a-73.sparc.rpm 9e140d7fe66015dfbb7f9b9edce5f91e ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/samba-client-2.2.1a-73.sparc.rpm 632d72c89565cc90be8e02b50d3cdb9a source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/samba-2.2.1a-73.src.rpm eea5157ce34ff8cb959ed46c144dd96f

AXP Alpha Platform:
SuSE-7.1: ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/samba-2.0.10-21.alpha.rpm 046c7de92587d7a1c30d915b72e176bc ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/smbclnt-2.0.10-21.alpha.rpm 12e9b05050a1610ba03f5338c6f92b82 source rpm(s): ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/samba-2.0.10-21.src.rpm 79359cbca70ec1fb8a425e5b9a7eb00c

PPC Power PC Platform:
SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/samba-2.2.1a-147.ppc.rpm bd367591e2df9061baa618d6a78c84b1 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/samba-client-2.2.1a-147.ppc.rpm b05f69057a35abde3e2c19aa456f8467 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/samba-2.2.1a-147.src.rpm d990a6b247a6a38eaaeaef06f71269ea
SuSE-7.1: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/samba-2.0.10-21.ppc.rpm 5dc1f1d9337a5241cb35e7179e8fb28b ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/smbclnt-2.0.10-21.ppc.rpm 76263c619a4d05ef4f4de4f9813a0a72 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/samba-2.0.10-21.src.rpm be112406b4fff2b5e4a08a67a2411919

______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- wget New wget packages are available which filter certain characters such as .. and / in filenames to ensure evil servers cannot overwrite important system-files or files outside the current directory.

______________________________________________________________________________
3) standard appendix: authenticity verification, additional information
- Package authenticity verification:
SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. 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) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package.
1) execute the command md5sum <name-of-the-file.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 announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security@suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless.
2) 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, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build@suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and atftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .

- SuSE runs two security mailing lists to which any interested party may subscribe:
suse-security@suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe@suse.com>.
suse-security-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security announcements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe@suse.com>.
For general information or the frequently asked questions (faq) send mail to: <suse-security-info@suse.com> or <suse-security-faq@suse.com> respectively.
===================================================================== 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, it is desired that the clear-text signature shows proof of the authenticity of the text. SuSE Linux AG makes 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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Vendor Information

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

Addendum

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

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Sun Microsystems Inc. Affected

Fujitsu Not Affected

Ingrian Networks Not Affected

Openwall GNU/*/Linux Not Affected

SGI Unknown

View all 19 vendors View less vendors

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

Acknowledgements

Thanks to Sebastian Krahmer for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

CVE IDs:	CVE-2003-0085
Severity Metric:	23.63
Date Public:	2003-03-16
Date First Published:	2003-03-17
Date Last Updated:	2003-05-15 16:54 UTC
Document Revision:	8

Software Engineering Institute

CERT Coordination Center

Samba contains buffer overflow in SMB/CIFS packet fragment reassembly code

Vulnerability Note VU#298233

Overview

Description

Impact

Solution

Vendor Information

Apple Computer Inc. Affected

Conectiva Affected

Debian Affected

FreeBSD Affected

Gentoo Linux Affected

Hewlett-Packard Company Affected

IBM Affected

MandrakeSoft Affected

MontaVista Software Affected

OpenPKG Affected

Red Hat Inc. Affected

SGI Affected

Samba Team Affected

SuSE Inc. Affected

Sun Microsystems Inc. Affected

Fujitsu Not Affected

Ingrian Networks Not Affected

Openwall GNU/*/Linux Not Affected

SGI Unknown

CVSS Metrics

References

Acknowledgements

Other Information

Contact CERT/CC