CERT/CC Vulnerability Note VU#958321

Overview

A remotely exploitable stack buffer overflow exists in the Samba server daemon (smbd).

Description

Versions 2.2.2 through 2.2.6 of Samba contain a remotely exploitable stack buffer overflow. The Samba Team describes Samba as follows:

The Samba software suite is a collection of programs that implements the Server Message Block (commonly abbreviated as SMB) protocol for UNIX systems. This protocol is sometimes also referred to as the Common Internet File System (CIFS), LanManager or NetBIOS protocol.
The Samba Team describes the vulnerability as follows:
There was a bug in the length checking for encrypted password change requests from clients. A client could potentially send an encrypted password, which, when decrypted with the old hashed password could be used as a buffer overrun attack on the stack of smbd. The attach would have to be crafted such that converting a DOS codepage string to little endian UCS2 unicode would translate into an executable block of code.

Impact

A remote attacker can execute arbitrary code with superuser privileges or can cause smbd to crash.

Solution

Apply a patch from your vendor.

Vendor Information

958321

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.

Hewlett-Packard Company Affected

Updated: December 12, 2002

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

HP Support Information Digests

=============================================================================== o Security Bulletin Digest Split ------------------------------
The security bulletins digest has been split into multiple digests based on the operating system (HP-UX, MPE/iX, and HP Secure OS Software for Linux). You will continue to receive all security bulletin digests unless you choose to update your subscriptions.
To update your subscriptions, use your browser to access the IT Resource Center on the World Wide Web at:
http://support.itrc.hp.com/
Under the Maintenance and Support Menu, click on the "more..." link. Then use the 'login' link at the left side of the screen to login using your IT Resource Center User ID and Password.
Under the notifications section (near the bottom of the page), select Support Information Digests.
To subscribe or unsubscribe to a specific security bulletin digest, select or unselect the checkbox beside it. Then click the "Update Subscriptions" button at the bottom of the page.
o IT Resource Center World Wide Web Service ---------------------------------------------------
If you subscribed through the IT Resource Center and would like to be REMOVED from this mailing list, access the IT Resource Center on the World Wide Web at:
http://support.itrc.hp.com/
Login using your IT Resource Center User ID and Password. Then select Support Information Digests (located under Maintenance and Support). You may then unsubscribe from the appropriate digest. ===============================================================================

Digest Name: daily HP-UX security bulletins digest Created: Wed Dec 11 6:00:03 EST 2002
Table of Contents:
Document ID Title --------------- ----------- HPSBUX0212-232 SSRT2370 Sec. Vulnerability with ntpd on HP-UX HPSBUX0212-230 SSRT2437 Sec. Vulnerability in CIFS/9000 Samba Server2 2 HPSBUX0212-231 SSRT2434 Sec. vulnerability with HP-UX Visualize Conference
The documents are listed below. -------------------------------------------------------------------------------

Document ID: HPSBUX0212-232 Date Loaded: 20021210 Title: SSRT2370 Sec. Vulnerability with ntpd on HP-UX
TEXT

----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0212-233 Originally issued: 10 Dec 2002 SSRT2370 Sec. Vulnerability with ntpd on HP-UX -----------------------------------------------------------------
NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact.
The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett-Packard Company will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Bulletin as soon as possible.
------------------------------------------------------------------ PROBLEM: xntpd software may HANG or exhibit extremely poor performance.
IMPACT: Potential denial of service (DoS).
PLATFORM: HP 9000 Series 700 and 800 running HP-UX releases 10.20, 10.24, 11.00, 11.04 and 11.11 using the xntpd software.
SOLUTION: Retrieve and apply the following patches:
for HP-UX 10.20: PHNE_24510 for HP-UX 10.24(VVOS): PHNE_28002 for HP-UX 11.00: PHNE_27223 for HP-UX 11.04(VVOS): PHNE_27442 for HP-UX 11.11: PHNE_24512
MANUAL ACTIONS: No
AVAILABILITY: All patches are currently available from <itrc.hp.com>. ------------------------------------------------------------------ A. Background Some HP-UX systems running the latest xntpd software may HANG or exhibit extremely poor performance.
B. Recommended solution HP has made available a patch to upgrade NTP timeservices. Retrieve and apply the following patches to affected systems. for HP-UX 10.20: PHNE_24510 10.24(VVOS): PHNE_28002 11.00: PHNE_27223 11.04(VVOS): PHNE_27442 11.11: PHNE_24512
The patches do not require a reboot. The problem is fixed in HP-UX release 11.22.
C. To subscribe to automatically receive future NEW HP Security Bulletins from the HP IT Resource Center via electronic mail, do the following:
Use your browser to get to the HP IT Resource Center page at:
http://itrc.hp.com
Use the 'Login' tab at the left side of the screen to login using your ID and password. Use your existing login or the "Register" button at the left to create a login, in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other Technical Digests, click the check box (in the left column) for the appropriate digest and then click the "Update Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link (in the middle column) for the appropriate digest.
To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins Archive". (near the bottom of the page) Once in the archive the third link is to the current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. Security Patch Check completely automates the process of reviewing the patch matrix for 11.XX systems.
For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA
The security patch matrix is also available via anonymous ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive".
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com.
------------------------------------------------------------------
(c) Copyright 2002 Hewlett-Packard Company Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of HP products referenced herein are trademarks and/or service marks of Hewlett-Packard Company. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners.
________________________________________________________________ -- -----End of Document ID: HPSBUX0212-232--------------------------------------

Document ID: HPSBUX0212-230 Date Loaded: 20021210 Title: SSRT2437 Sec. Vulnerability in CIFS/9000 Samba Server2 2
TEXT

----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0212-0230 Originally issued: 10 Dec 2002 SSRT2437 Sec. Vulnerability in CIFS/9000 Samba Server2.2 -----------------------------------------------------------------
NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact.
The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett-Packard Company will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Bulletin as soon as possible.
------------------------------------------------------------------ PROBLEM: CIFS/9000 Server 2.2 buffer overflow vulnerability.
IMPACT: Potential root access.
PLATFORM: HP 9000 servers running the following CIFS Server versions:
- A.01.08 - A.01.08.01 - A.01.09
SOLUTION: Update to CIFS Server 2.2 version A.01.09.01
MANUAL ACTIONS: Yes - Update to version A.01.09.01
AVAILABILITY: CIFS Server 2.2 version A.01.09.01 is currently available from: <http://www.software.hp.com/NSM_products_list.html>
------------------------------------------------------------------
A. Background A buffer overrun has been discovered in the HP CIFS Server version A.01.09 and earlier. There is no known exploit of this vulnerability, and the Samba Team has not been able to craft one themselves. Nevertheless, the Samba Team has judged the vulnerability significant and announced the defect and fix in their latest release. HP has integrated the fix into the latest release of CIFS Server 2.2 For additional details, see: http://www.samba.org/samba/whatsnew/samba-2.2.7.html
B. Recommended solution Upgrade to CIFS Server 2.2 version A.01.09.01 which is currently available from:
<http://www.software.hp.com/NSM_products_list.html>
It is the product B8725AA, CIFS/9000 Server 2.2.c.

C. To subscribe to automatically receive future NEW HP Security Bulletins from the HP IT Resource Center via electronic mail, do the following:
Use your browser to get to the HP IT Resource Center page at:
http://itrc.hp.com
Use the 'Login' tab at the left side of the screen to login using your ID and password. Use your existing login or the "Register" button at the left to create a login, in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of the page), select "Support Information Digests". To -subscribe- to future HP Security Bulletins or other Technical Digests, click the check box (in the left column) for the appropriate digest and then click the "Update Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link (in the middle column) for the appropriate digest.
To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins Archive". (near the bottom of the page) Once in the archive the third link is to the current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. Security Patch Check completely automates the process of reviewing the patch matrix for 11.XX systems.
For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=3DB6834AA
The security patch matrix is also available via anonymous ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive".
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com.
------------------------------------------------------------------
(c) Copyright 2002 Hewlett-Packard Company Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of HP products referenced herein are trademarks and/or service marks of Hewlett-Packard Company. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners.
________________________________________________________________ -- -----End of Document ID: HPSBUX0212-230--------------------------------------

Document ID: HPSBUX0212-231 Date Loaded: 20021210 Title: SSRT2434 Sec. vulnerability with HP-UX Visualize Conference
TEXT

----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0212-231 Originally issued: 11 December 2002 SSRT2434 Security vulnerability with HP-UX Visualize Conference -----------------------------------------------------------------
NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact.
The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett-Packard Company will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Bulletin as soon as possible.
------------------------------------------------------------------ PROBLEM: The installation of HP-UX Visualize Conference leaves certain directories with insecure permissions.
IMPACT: Potential increase in privileges, unauthorized access.
PLATFORM: HP 9000 Series 700 and 800, HP-UX 11.00 and 11.11 systems which have ever installed HP-UX Visualize Conference version B.11.00.11.
SOLUTION: Change the insecure directory permissions.
MANUAL ACTIONS: Yes - NonUpdate Change ownership and permissions as follows: /etc/dt 755 bin/bin /etc/dt/appconfig 755 root/sys /etc/dt/appconfig/icons 755 root/sys /etc/dt/appconfig/icons/C 755 root/sys /etc/dt/appconfig/types 755 root/sys /etc/dt/appconfig/types/C 755 root/sys
AVAILABILITY: This bulletin will be revised when a product update is available. ------------------------------------------------------------------ A. Background If HP-UX Visualize Conference version B.11.00.11 has ever been installed on an 11.00 or 11.11 system the permissions of certain directories may be insecure.
The installation of HP-UX Visualize Conference may leave certain directories with insecure permissions. The vulnerability is not with the HP-UX Visualize Conference product itself, but rather with the state of the directory
permissions after HP-UX Visualize Conference has been installed. The vulnerability remains even after HP-UX Visualize Conference is removed.
The problem arises if the directories do not exist at the time HP-UX Visualize Conference version B.11.00.11 is installed. Therefore not all systems with HP-UX Visualize Conference version B.11.00.11 are vulnerable. Also once the directory permissions are corrected a subsequent reinstallation of HP-UX Visualize Conference version B.11.00.11 will not alter the permissions.
B. Recommended solution
Change the insecure directory permissions using the following procedure or the equivalent:
As root create a script "chown_chmod":
#!/sbin/sh # chown_chmod root:sys 755 file chown $1 $3 chmod $2 $3
Then:
chown_chmod bin:bin 755 /etc/dt chown_chmod root:sys 755 /etc/dt/appconfig chown_chmod root:sys 755 /etc/dt/appconfig/icons chown_chmod root:sys 755 /etc/dt/appconfig/icons/C chown_chmod root:sys 755 /etc/dt/appconfig/types chown_chmod root:sys 755 /etc/dt/appconfig/types/C

C. To subscribe to automatically receive future NEW HP Security Bulletins from the HP IT Resource Center via electronic mail, do the following:
Use your browser to get to the HP IT Resource Center page at:
http://itrc.hp.com
Use the 'Login' tab at the left side of the screen to login using your ID and password. Use your existing login or the "Register" button at the left to create a login, in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other Technical Digests, click the check box (in the left column) for the appropriate digest and then click the "Update Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link (in the middle column) for the appropriate digest.
To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins Archive". (near the bottom of the page) Once in the archive the third link is to the current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. Security Patch Check completely automates the process of reviewing the patch matrix for 11.XX systems.
For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA
The security patch matrix is also available via anonymous ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive".
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com.
------------------------------------------------------------------
(c)Copyright 2002 Hewlett-Packard Company Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of HP products referenced herein are trademarks and/or service marks of Hewlett-Packard Company. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners.
________________________________________________________________ -----End of Document ID: HPSBUX0212-231--------------------------------------

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

MandrakeSoft Affected

Updated: December 13, 2002

Status

Affected

Vendor Statement

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

________________________________________________________________________
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>
- -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.7 (GNU/Linux)
mQGiBDlp594RBAC2tDozI3ZgQsE7XwxurJCJrX0L5vx7SDByR5GHDdWekGhdiday L4nfUax+SeR9SCoCgTgPW1xB8vtQc8/sinJlMjp9197a2iKM0FOcPlkpa3HcOdt7 WKJqQhlMrHvRcsivzcgqjH44GBBJIT6sygUF8k0lU6YnMHj5MPc/NGWt8wCg9vKo P0l5QVAFSsHtqcU9W8cc7wMEAJzQsAlnvPXDBfBLEH6u7ptWFdp0GvbSuG2wRaPl hynHvRiE01ZvwbJZXsPsKm1z7uVoW+NknKLunWKB5axrNXDHxCYJBzY3jTeFjsqx PFZkIEAQphLTkeXXelAjQ5u9tEshPswEtMvJvUgNiAfbzHfPYmq8D6x5xOw1IySg 2e/LBACxr2UJYCCB2BZ3p508mAB0RpuLGukq+7UWiOizy+kSskIBg2O7sQkVY/Cs iyGEo4XvXqZFMY39RBdfm2GY+WB/5NFiTOYJRKjfprP6K1YbtsmctsX8dG+foKsD LLFs7OuVfaydLQYp1iiN6D+LJDSMPM8/LCWzZsgr9EKJ8NXiyrQ6TGludXggTWFu ZHJha2UgU2VjdXJpdHkgVGVhbSA8c2VjdXJpdHlAbGludXgtbWFuZHJha2UuY29t PohWBBMRAgAWBQI5aefeBAsKBAMDFQMCAxYCAQIXgAAKCRCaqNDQIkWKmK6LAKCy /NInDsaMSI+WHwrquwC5PZrcnQCeI+v3gUDsNfQfiKBvQSANu1hdulqIRgQQEQIA BgUCOtNVGQAKCRBZ5w3um0pAJJWQAKDUoL5He+mKbfrMaTuyU5lmRyJ0fwCgoFAP WdvQlu/kFjphF740XeOwtOqIRgQQEQIABgUCOu8A6QAKCRBynDnb9lq3CnpjAJ4w Pk0SEE9U4r40IxWpwLU+wrWVugCdFfSPllPpZRCiaC7HwbFcfExRmPaIRgQQEQIA BgUCPI+UAwAKCRDniYrgcHcf8xK5AKCm/Mq8qP8GE0o1hEX22QsJMZwH5gCfZ72H 8TacOb3oAmBdprf+K6gkdOiIRgQQEQIABgUCOtOieAAKCRCv2bZyU0yB80MeAJ9K +jXt0cKuaUonRU+CRGetk6t9dgCfTRRL6/puOKdD6md70+K5EBBSvsG0OE1hbmRy YWtlIExpbnV4IFNlY3VyaXR5IFRlYW0gPHNlY3VyaXR5QG1hbmRyYWtlc29mdC5j b20+iFcEExECABcFAjyPnuUFCwcKAwQDFQMCAxYCAQIXgAAKCRCaqNDQIkWKmFi+ AJsHhohgnU3ik4+gy3EdFlB2i/MBoACg6lHn5cnVvTcmgNccWxeNxLLZI5e5AQ0E OWnn7xAEAOQlTVY4TiNo5V/iP0J1xnqjqlqZsU7yEBKo/gZz6/+hx75RURe1ebiJ 9F779FQbpJ9Epz1KLSXvq974rnVb813zuGdmgFyk+ryA/rTR2RQ8h+EoNkwmATzR xBXVJb57fFQjxOu4eNjZAtfII/YXb0uyXXrdr5dlJ/3eXrcO4p0XAAMFBACCxo6Z 269s+A4v8C6Ui12aarOQcCDlV8cVG9LkyatU3FNTlnasqwo6EkaP572448weJWwN 6SCXVl+xOYLiK0hL/6Jb/O9Agw75yUVdk+RMM2I4fNEi+y4hmfMh2siBv8yEkEvZ jTcl3TpkTfzYky85tu433wmKaLFOv0WjBFSikohGBBgRAgAGBQI5aefvAAoJEJqo 0NAiRYqYid0AoJgeWzXrEdIClBOSW5Q6FzqJJyaqAKC0Y9YI3UFlE4zSIGjcFlLJ EJGXlA== =yGlX - -----END PGP PUBLIC KEY BLOCK-----
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux)
iD8DBQE94uCrmqjQ0CJFipgRAtH9AKDZ5fi6/mGdx4HldnVAgaWwTGSzDgCg53+K XVuJ3G64lSEO7Q2wvP4C2zo= =CVQZ -----END PGP SIGNATURE-----

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

Updated: December 13, 2002

Status

Affected

Vendor Statement

--------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory

Synopsis: New samba packages available to fix potential security vulnerability Advisory ID: RHSA-2002:266-05 Issue date: 2002-11-22 Updated on: 2002-11-21 Product: Red Hat Linux Keywords: samba security encrypted password change Cross references: Obsoletes: ---------------------------------------------------------------------
1. Topic:
New samba packages are available that fix a security vulnerability present in samba versions 2.2.2 through 2.2.6. A potential attacker could gain root access on the target machine. It is strongly encouraged that all Samba users update to the fixed packages.
As of this time, there are no known exploits for this vulnerability.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386 Red Hat Linux 8.0 - i386
3. Problem description:
There was a bug in the length checking for encrypted password change requests from clients. A client could potentially send an encrypted password, which, when decrypted with the old hashed password, could be used as a buffer overrun attack on smbd's stack. The attack would have to be crafted such that converting a DOS codepage string to little endian UCS2 unicode would translate into an executable block of code.
Thanks to the Debian Samba maintainers for discovering this issue, and to the Samba team for providing the fix (and the problem description text above.)
4. Solution:
Before applying this update, make sure all previously released errata relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs.
Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.
5. RPMs required:
Red Hat Linux 7.3:
SRPMS:ftp://updates.redhat.com/7.3/en/os/SRPMS/samba-2.2.7-1.7.3.src.rpm
i386:ftp://updates.redhat.com/7.3/en/os/i386/samba-2.2.7-1.7.3.i386.rpmftp://updates.redhat.com/7.3/en/os/i386/samba-common-2.2.7-1.7.3.i386.rpmftp://updates.redhat.com/7.3/en/os/i386/samba-client-2.2.7-1.7.3.i386.rpmftp://updates.redhat.com/7.3/en/os/i386/samba-swat-2.2.7-1.7.3.i386.rpm
Red Hat Linux 8.0:
SRPMS:ftp://updates.redhat.com/8.0/en/os/SRPMS/samba-2.2.7-2.src.rpm
i386:ftp://updates.redhat.com/8.0/en/os/i386/samba-2.2.7-2.i386.rpmftp://updates.redhat.com/8.0/en/os/i386/samba-common-2.2.7-2.i386.rpmftp://updates.redhat.com/8.0/en/os/i386/samba-client-2.2.7-2.i386.rpmftp://updates.redhat.com/8.0/en/os/i386/samba-swat-2.2.7-2.i386.rpm

6. Verification:
MD5 sum Package Name -------------------------------------------------------------------------- 5c8ba729bb3e6d2f0614fd543053e6e9 7.3/en/os/SRPMS/samba-2.2.7-1.7.3.src.rpm 92178f0aa6c7ec0cb2b55c0f32c59ca4 7.3/en/os/i386/samba-2.2.7-1.7.3.i386.rpm 6915d467d9572737dfbfcac916734084 7.3/en/os/i386/samba-client-2.2.7-1.7.3.i386.rpm 56ce43d49614bf5a79b90dfbd4a77235 7.3/en/os/i386/samba-common-2.2.7-1.7.3.i386.rpm 82cbcb8e2c3be661e0e6c1c7f9856ecd 7.3/en/os/i386/samba-swat-2.2.7-1.7.3.i386.rpm 9b5ded05dc9cc2c49c40b686ec78caf7 8.0/en/os/SRPMS/samba-2.2.7-2.src.rpm 4e2339d23bad01690938748d84dac186 8.0/en/os/i386/samba-2.2.7-2.i386.rpm a7a48f9d6d8e45966172ae1b941e0208 8.0/en/os/i386/samba-client-2.2.7-2.i386.rpm 3bd309562e0cdefc8d4cd5b02ee0b71c 8.0/en/os/i386/samba-common-2.2.7-2.i386.rpm 0efdfc0d8de8294c0dd4978a82d15991 8.0/en/os/i386/samba-swat-2.2.7-2.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security. Our key is available athttp://www.redhat.com/about/contact/pgpkey.html
You can verify each package with the following command:
rpm --checksig -v <filename>
If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command:
md5sum <filename>
7. Contact:
The Red Hat security contact is <security@redhat.com>. More contact details athttp://www.redhat.com/solutions/security/news/contact.html
Copyright(c) 2000, 2001, 2002 Red Hat, Inc.

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.

SCO Affected

Updated: May 05, 2003

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

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.

Apple Computer Inc. Not Affected

Updated: February 14, 2003

Status

Not Affected

Vendor Statement

Apple: Not vulnerable. Mac OS X and Mac OS X Server do not make use of Samba's length checking for encrypted password change requests. Instead, the Open Directory service is used for this purpose. As an extra precaution, Mac OS X 10.2.4 has incorporated the fix from the Samba team in the event that the vulnerable function is ever invoked.

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.

View all 14 vendors View less vendors

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

Acknowledgements

This vulnerability was discovered by Steve Langasek and Eloy Paris.

This document was written by Ian A Finlay.

Other Information

CVE IDs:	CVE-2002-1318
Severity Metric:	45.56
Date Public:	2002-11-20
Date First Published:	2002-12-13
Date Last Updated:	2003-05-16 18:19 UTC
Document Revision:	23

Software Engineering Institute

CERT Coordination Center

Samba contains a remotely exploitable stack buffer overflow

Vulnerability Note VU#958321

Overview

Description

Impact

Solution

Vendor Information

Conectiva Affected

Status

Vendor Statement

Vendor Information

Addendum

Debian Affected

Status

Vendor Statement

Vendor Information

Addendum

Gentoo Linux Affected

Status

Vendor Statement

Vendor Information

Addendum

Hewlett-Packard Company Affected

Status

Vendor Statement

Vendor Information

Addendum

MandrakeSoft Affected

Status

Vendor Statement

Vendor Information

Addendum

Red Hat Inc. Affected

Status

Vendor Statement

Vendor Information

Addendum

SCO Affected

Status

Vendor Statement

Vendor Information

Addendum

SGI Affected

Status

Vendor Statement

Vendor Information

Addendum

Slackware Affected

Status

Vendor Statement

Vendor Information

Addendum

SuSE Inc. Affected

Status

Vendor Statement

Vendor Information

Addendum

Sun Microsystems Inc. Affected

Status

Vendor Statement

Vendor Information

Addendum

The OpenPKG Project Affected

Status

Vendor Statement

Vendor Information

Addendum

Trustix Secure Linux Affected

Status

Vendor Statement

Vendor Information

Addendum

Apple Computer Inc. Not Affected

Status

Vendor Statement

Vendor Information

Addendum

CVSS Metrics