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Linux-Mandrake Security Update Advisory: bind update

Jan 29, 2001, 23:13 (0 Talkback[s])

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Date: Mon, 29 Jan 2001 10:39:15 -0700
From: Linux Mandrake Security Team security@linux-mandrake.com
To: Linux Mandrake Security Announcements security-announce@linux-mandrake.com
Subject: [Security Announce] MDKSA-2001:017 - bind update


                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 uprade with "rpm -Uvh package_name".

You can download the updates directly from:
ftp://ftp.linux.tucows.com/pub/distributions/Mandrake/Mandrake/updates
ftp://ftp.free.fr/pub/Distributions_Linux/Mandrake/updates

Or try one of the other mirrors 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 7.1, look for it in "updates/7.1/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, so if you want an immediate upgrade, please use one of the two above-listed mirrors.

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