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RedHat: 'bind9' Denial of Service vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
RedHat Linux Version 9 of the bind name prior to version 9.2.1 contain a denial ofservice vulnerability.

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

Synopsis:          Updated bind packages fix denial of service attack
Advisory ID:       RHSA-2002:105-09
Issue date:        2002-06-02
Updated on:        2002-06-04
Product:           Red Hat Linux
Keywords:          bind srv consistancy dos
Cross references:  
Obsoletes:         RHSA-2001:007
CVE Names:         CAN-2002-0400
---------------------------------------------------------------------

1. Topic:

Version 9 of the bind name prior to version 9.2.1 contain a denial of
service vulnerability.

2. Relevant releases/architectures:

Red Hat Linux 7.1 - alpha, i386, ia64

Red Hat Linux 7.2 - i386, ia64

Red Hat Linux 7.3 - i386

3. Problem description:

BIND (Berkeley Internet Name Domain) is an implementation of the DNS
(Domain Name System) protocols.  Versions of BIND 9 prior to 9.2.1 have a bug
that causes certain requests to the BIND name server (named) to fail an
internal consistency check, causing the name server to stop responding to
requests.  This can be used by a remote attacker to cause a denial of
service (DOS) attack against name servers.

Red Hat Linux 7.1, 7.2 and 7.3 shipped with versions of BIND vulnerable to
this issue.  All users of BIND are advised to upgrade to the errata
packages containing BIND 9.2.1 which is not vulnerable to this issue.

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. Bug IDs fixed  (http://bugzilla.Red Hat.com/bugzilla for more info):



6. RPMs required:

Red Hat Linux 7.1:

SRPMS: 
ftp://updates.Red Hat.com/7.1/en/os/SRPMS/bind-9.2.1-0.70.src.rpm

alpha: 
ftp://updates.Red Hat.com/7.1/en/os/alpha/bind-9.2.1-0.70.alpha.rpm 
ftp://updates.Red Hat.com/7.1/en/os/alpha/bind-devel-9.2.1-0.70.alpha.rpm 
ftp://updates.Red Hat.com/7.1/en/os/alpha/bind-utils-9.2.1-0.70.alpha.rpm

i386: 
ftp://updates.Red Hat.com/7.1/en/os/i386/bind-9.2.1-0.70.i386.rpm 
ftp://updates.Red Hat.com/7.1/en/os/i386/bind-devel-9.2.1-0.70.i386.rpm 
ftp://updates.Red Hat.com/7.1/en/os/i386/bind-utils-9.2.1-0.70.i386.rpm

ia64: 
ftp://updates.Red Hat.com/7.1/en/os/ia64/bind-9.2.1-0.70.ia64.rpm 
ftp://updates.Red Hat.com/7.1/en/os/ia64/bind-devel-9.2.1-0.70.ia64.rpm 
ftp://updates.Red Hat.com/7.1/en/os/ia64/bind-utils-9.2.1-0.70.ia64.rpm

Red Hat Linux 7.2:

SRPMS: 
ftp://updates.Red Hat.com/7.2/en/os/SRPMS/bind-9.2.1-0.7x.src.rpm

i386: 
ftp://updates.Red Hat.com/7.2/en/os/i386/bind-9.2.1-0.7x.i386.rpm 
ftp://updates.Red Hat.com/7.2/en/os/i386/bind-devel-9.2.1-0.7x.i386.rpm 
ftp://updates.Red Hat.com/7.2/en/os/i386/bind-utils-9.2.1-0.7x.i386.rpm

ia64: 
ftp://updates.Red Hat.com/7.2/en/os/ia64/bind-9.2.1-0.7x.ia64.rpm 
ftp://updates.Red Hat.com/7.2/en/os/ia64/bind-devel-9.2.1-0.7x.ia64.rpm 
ftp://updates.Red Hat.com/7.2/en/os/ia64/bind-utils-9.2.1-0.7x.ia64.rpm

Red Hat Linux 7.3:

SRPMS: 
ftp://updates.Red Hat.com/7.3/en/os/SRPMS/bind-9.2.1-0.7x.src.rpm

i386: 
ftp://updates.Red Hat.com/7.3/en/os/i386/bind-9.2.1-0.7x.i386.rpm 
ftp://updates.Red Hat.com/7.3/en/os/i386/bind-devel-9.2.1-0.7x.i386.rpm 
ftp://updates.Red Hat.com/7.3/en/os/i386/bind-utils-9.2.1-0.7x.i386.rpm



7. Verification:

MD5 sum                          Package Name
--------------------------------------------------------------------------
b7c3a3e21b75f3cc3b67891988c3a061 7.1/en/os/SRPMS/bind-9.2.1-0.70.src.rpm
99d1b6ba14c3df1c5f31a3d4e2627095 7.1/en/os/alpha/bind-9.2.1-0.70.alpha.rpm
a6c926dd242e6248cd3fd7e830f09f2d 7.1/en/os/alpha/bind-devel-9.2.1-0.70.alpha.rpm
32c028a6a58726fcb66fcd59a2540696 7.1/en/os/alpha/bind-utils-9.2.1-0.70.alpha.rpm
eaf7057b6f168b79f4dc31956e7fdc8e 7.1/en/os/i386/bind-9.2.1-0.70.i386.rpm
210292b24525009ee5c7cdf2b8c4b7a8 7.1/en/os/i386/bind-devel-9.2.1-0.70.i386.rpm
d3229a5c3ab3b30a64e923d15edbe3bf 7.1/en/os/i386/bind-utils-9.2.1-0.70.i386.rpm
b05d4ff48a2cd89babf50e8097489245 7.1/en/os/ia64/bind-9.2.1-0.70.ia64.rpm
e41811e4bfc33aad40e609a8c71cace3 7.1/en/os/ia64/bind-devel-9.2.1-0.70.ia64.rpm
8737f157ddb70f1e272d34c6448bf0bf 7.1/en/os/ia64/bind-utils-9.2.1-0.70.ia64.rpm
2443a2f29ddf9af62eb48038bde0b9ee 7.2/en/os/SRPMS/bind-9.2.1-0.7x.src.rpm
16f6b21979fcbd90a5b044f5208ef20b 7.2/en/os/i386/bind-9.2.1-0.7x.i386.rpm
e6c63bf2190d50a3b014586304b97465 7.2/en/os/i386/bind-devel-9.2.1-0.7x.i386.rpm
6ca180c3e8ce4477cddd734843374e18 7.2/en/os/i386/bind-utils-9.2.1-0.7x.i386.rpm
50fba0e5fa8a33cc4db9020f76140824 7.2/en/os/ia64/bind-9.2.1-0.7x.ia64.rpm
983dd7df3f5ce85e50fcc92ec6055b05 7.2/en/os/ia64/bind-devel-9.2.1-0.7x.ia64.rpm
927cd81e750a524dace2d4f085b10976 7.2/en/os/ia64/bind-utils-9.2.1-0.7x.ia64.rpm
2443a2f29ddf9af62eb48038bde0b9ee 7.3/en/os/SRPMS/bind-9.2.1-0.7x.src.rpm
16f6b21979fcbd90a5b044f5208ef20b 7.3/en/os/i386/bind-9.2.1-0.7x.i386.rpm
e6c63bf2190d50a3b014586304b97465 7.3/en/os/i386/bind-devel-9.2.1-0.7x.i386.rpm
6ca180c3e8ce4477cddd734843374e18 7.3/en/os/i386/bind-utils-9.2.1-0.7x.i386.rpm
 

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
     http://www.Red Hat.com/about/contact/pgpkey.html

You can verify each package with the following command:
    rpm --checksig  

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg 

8. References:

 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0400



Copyright(c) 2000, 2001, 2002 Red Hat, Inc.





 
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