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________________________________________________________________________

                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:		bind
Date:			January 29th, 2001
Advisory ID:		MDKSA-2001:017

Affected versions:	6.0, 6.1, 7.0, 7.1, 7.2, Corporate Server 1.0.1
________________________________________________________________________

Problem Description:

 Four problems exists in all versions of ISC BIND 4.9.x prior to 4.9.8 
 and 8.2.x prior to 8.2.3 (9.x is not affected).  Version 8.2.x contains
 a buffer overflow in transaction signature (TSIG) handling code that
 can be exploited by an attacker to gain unauthorized privileged access
 to the system, allowing execution of arbitrary code.  BIND 4 contains
 both a buffer overflow in the nslookupComplain() function, as well as
 an input validation error in the same function.  These two flaws in
 BIND 4 can result in a Denial of Service or the execution of arbitrary
 code if successfully exploited.  Finally, both BIND 4 and BIND 8 suffer
 from an information leak in the query processing code that allows a
 remote attacker to access the program stack, possibly exposing program
 and/or environment variables.  This flaw is triggered by sending a
 specially formatted query to vulnerable BIND servers.

 Linux-Mandrake ships with ISC BIND 8 and is therefore vulnerable to the
 first and final vulnerabilities previously mentioned.  The first
 vulnerability is limited because any access gained exploiting it will
 result in restricted access due to the named server running as the user
 and group named, not as root.

 It is highly recommended that all Linux-Mandrake users upgrade BIND
 immediately to the latest 8.2.3 version that fixes these 
 vulnerabilities.

 For more information, please read the CERT Advisory (CA-2001-02) at:

  http://www.cert.org/advisories/CA-2001-02.html
________________________________________________________________________

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:
  rpm --checksig package.rpm
You can get the GPG public key of the Linux-Mandrake Security Team at
  http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.

Linux-Mandrake 6.0:
b21032656e21606c2163fa92e708b9d1  6.0/RPMS/bind-8.2.3-1.3mdk.i586.rpm
d685e01c45302c7bfad0da9635590f37  6.0/RPMS/bind-devel-8.2.3-1.3mdk.i586.rpm
5da61ce349d02aa15ac94190934e7b7b  6.0/RPMS/bind-utils-8.2.3-1.3mdk.i586.rpm
b1e26aa2666c5a35cff0496a863748b4  6.0/SRPMS/bind-8.2.3-1.3mdk.src.rpm

Linux-Mandrake 6.1:
dc329783fa290dac8cd5a738df8a82d8  6.1/RPMS/bind-8.2.3-1.2mdk.i586.rpm
ad9b06a8481ccde39ef1eb7c597d043e  6.1/RPMS/bind-devel-8.2.3-1.2mdk.i586.rpm
3df3e8047e198aa0be440308ba74adb6  6.1/RPMS/bind-utils-8.2.3-1.2mdk.i586.rpm
066b6ff50f9ba62d76ecbc198d70b9dd  6.1/SRPMS/bind-8.2.3-1.2mdk.src.rpm

Linux-Mandrake 7.0:
6d1b647fe11e466a4ee3ef75424da068  7.0/RPMS/bind-8.2.3-1.2mdk.i586.rpm
45d5e366eaf3b2c1cf7c9820e681de1d  7.0/RPMS/bind-devel-8.2.3-1.2mdk.i586.rpm
b3cc1eed184505ec95e34a9fd78e65e3  7.0/RPMS/bind-utils-8.2.3-1.2mdk.i586.rpm
066b6ff50f9ba62d76ecbc198d70b9dd  7.0/SRPMS/bind-8.2.3-1.2mdk.src.rpm

Linux-Mandrake 7.1:
5ab9bf322cecb913c6649540d5819e3d  7.1/RPMS/bind-8.2.3-1.2mdk.i586.rpm
eac8d15ebdfaeb5add97c8a9e0058fa7  7.1/RPMS/bind-devel-8.2.3-1.2mdk.i586.rpm
df714be43fe1f122dcff839c85d00719  7.1/RPMS/bind-utils-8.2.3-1.2mdk.i586.rpm
066b6ff50f9ba62d76ecbc198d70b9dd  7.1/SRPMS/bind-8.2.3-1.2mdk.src.rpm

Linux-Mandrake 7.2:
d4b18a2076c22cfc0df869195cc814bf  7.2/RPMS/bind-8.2.3-1.1mdk.i586.rpm
dcf1a804d54a64f7129e4b06addf8cae  7.2/RPMS/bind-devel-8.2.3-1.1mdk.i586.rpm
e8e3d17f7eff95611128ffaa9c43c65d  7.2/RPMS/bind-utils-8.2.3-1.1mdk.i586.rpm
d0b55e4166fc6470dad18aa91c1143c5  7.2/SRPMS/bind-8.2.3-1.1mdk.src.rpm

Corporate Server 1.0.1:
5ab9bf322cecb913c6649540d5819e3d  1.0.1/RPMS/bind-8.2.3-1.2mdk.i586.rpm
eac8d15ebdfaeb5add97c8a9e0058fa7  1.0.1/RPMS/bind-devel-8.2.3-1.2mdk.i586.rpm
df714be43fe1f122dcff839c85d00719  1.0.1/RPMS/bind-utils-8.2.3-1.2mdk.i586.rpm
066b6ff50f9ba62d76ecbc198d70b9dd  1.0.1/SRPMS/bind-8.2.3-1.2mdk.src.rpm
________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  

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

You can download the updates directly from one of the mirror sites
listed at:

  http://www.linux-mandrake.com/en/ftp.php3.  

Updated packages are available in the "updates/[ver]/RPMS/" directory. 
 
For example, if you are looking for an updated RPM package for
Linux-Mandrake 7.2, look for it in "updates/7.2/RPMS/".  Updated source
RPMs are available as well, but you generally do not need to download
them.

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

You can view other security advisories for Linux-Mandrake at:

  http://www.linux-mandrake.com/en/security/

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Linux-Mandrake has two security-related mailing list services that 
anyone can subscribe to:

security-announce@linux-mandrake.com

  Linux-Mandrake's security announcements mailing list.  Only 
  announcements are sent to this list and it is read-only.

security-discuss@linux-mandrake.com

  Linux-Mandrake's security discussion mailing list.  This list is open
  to anyone to discuss Linux-Mandrake security specifically and Linux
  security in general.

To subscribe to either list, send a message to
  sympa@linux-mandrake.com
with "subscribe [listname]" in the body of the message.

To remove yourself from either list, send a message to
  sympa@linux-mandrake.com
with "unsubscribe [listname]" in the body of the message.

To get more information on either list, send a message to
  sympa@linux-mandrake.com
with "info [listname]" in the body of the message.

Optionally, you can use the web interface to subscribe to or unsubscribe
from either list:

  http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________

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


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