Date: Mon, 29 Jan 2001 10:39:15 -0700
From: Linux Mandrake Security Team firstname.lastname@example.org
To: Linux Mandrake Security Announcements
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
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
For more information, please read the CERT Advisory (CA-2001-02)
Please verify the update prior to upgrading to ensure the
integrity of the downloaded package. You can do this with the
rpm --checksig package.rpm
You can get the GPG public key of the Linux-Mandrake Security Team
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.
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
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