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SuSE Security Announcement: bind8 (SuSE-SA:2000:45)
From: Roman Drahtmueller <draht () suse de>
Date: Thu, 16 Nov 2000 16:36:22 +0100

-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________

                        SuSE Security Announcement

        Package:                bind8
        Announcement-ID:        SuSE-SA:2000:45
        Date:                   Thursday, November 16th, 2000 16:00 MEST
        Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4
        Vulnerability Type:     remote denial of service
        Severity (1-10):        7
        SuSE default package:   no
        Other affected systems: all systems using bind, version 8.2.2 before
                                patchlevel 7

    Content of this advisory:
        1) security vulnerability resolved: bind8
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds
        3) standard appendix (further information)

______________________________________________________________________________

1)  problem description, brief discussion, solution, upgrade information


    BIND, the Berkeley Internet Name Daemon, versions before 8.2.2p7, has
    been found vulnerable to two denial of service attacks: named may crash
    after a compressed zone transfer request (ZXFR) and if an SRV record
    (defined in RFC2782) is sent to the server. Administrators testing
    the ZXFR bug should be aware that it can take several seconds after
    the triggering the bug until the nameserver daemon crashes.
    SuSE versions 6.0 through 6.4 are affected by these two problems.
    The bind8 package in SuSE-7.0 is not affected because a different
    version of bind8 (8.2.3) was used in this distribution. By the release
    time of the SuSE-7.0 distribution our engineers have determined that
    the problems we had with stalling zone transfers under some obscure
    conditions were not present with the 8.2.3 release of the package.

    Administrators are strongly recommended to upgrade their bind8 package
    using the provided packages from the sources below. There is a
    temporary fix for the ZXFR problem (disable zone transfers) but none
    for the SRV record problem.
    For the latest information about security vulnerabilities in the bind
    name server consider the Internet Software Consortium bind security
    webpage at http://www.isc.org/products/BIND/bind-security.html .

    To check if your system has the vulnerable package installed, use the
    command `rpm -q <package name>´. If applicable, please choose the update
    package(s) for your distribution from the URLs listed below and download
    the necessary rpm files. Then, install the package using the command
    `rpm -Uhv file.rpm´. rpm packages have an internal md5 checksum that
    protects against file corruption. You can verify this checksum using
    the command (independently from the md5 signatures below)
        `rpm --checksig --nogpg file.rpm',
    The md5 sums under each package are to prove the package authenticity,
    independently from the md5 checksums in the rpm package format.

    i386 Intel Platform:

    SuSE-6.4
    ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/bind8-8.2.2-139.i386.rpm
      c6f2242efe722aaa4320010e00ddc080
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/bind8-8.2.2-139.src.rpm
      ecd26bdf60d7950585649bc638a1d812

    SuSE-6.3
    ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/bind8-8.2.2-139.i386.rpm
      d3f51528ad2120cd3dc6517c2bc26c0a
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/bind8-8.2.2-139.src.rpm
      6f1b8c1227d4876389a28d416a952713

    SuSE-6.2
    ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/bind8-8.2.2-139.i386.rpm
      4d8a9f4c6e041326929bbdae97c10105
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/bind8-8.2.2-139.src.rpm
      83807820676d98687797ffff6f5b425c

    SuSE-6.1
    ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/bind8-8.2.2-139.i386.rpm
      1694cf40b5fa41361749297c9cddbca4
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/bind8-8.2.2-139.src.rpm
      8c5f727554e12a5aedb96de3db663518

    SuSE-6.0
    Please use the package from the 6.1 distribution.

    AXP Alpha Platform:

    SuSE-6.4
    ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/bind8-8.2.2-139.alpha.rpm
      51f61faaad78160fb3dcc68a8588c209
    source rpm:
    ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/bind8-8.2.2-139.src.rpm
      f42c51962852f8ff14e2d6423de62aec

    SuSE-6.3
    ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/bind8-8.2.2-139.alpha.rpm
      4d16cecb0da4f8ed6bff9c92655b9036
    source rpm:
    ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/bind8-8.2.2-139.src.rpm
      d8c4d1d9f0a14249151aa9d9e25f1db8

    SuSE-6.1
    ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/bind8-8.2.2-139.alpha.rpm
      6a4f5b18072cca93f9064fdc802e50fb
    source rpm:
    ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/bind8-8.2.2-139.src.rpm
      a3eec237cc642739b5b6c6eea6d197c0


    PPC Power PC Platform:

    SuSE-6.4
    ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/bind8-8.2.2-139.ppc.rpm
      65e82b875e7f8ff7409062d502d56115
    source rpm:
    ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/bind8-8.2.2-139.src.rpm
      fd2a6e2a29a80b997758d4245913ff51



______________________________________________________________________________

2)  Pending vulnerabilities in SuSE Distributions and Workarounds:

    A new security announcement follows this advisory.
______________________________________________________________________________

3)  standard appendix:

    SuSE runs two security mailing lists to which any interested party may
    subscribe:

    suse-security () suse com
        -   general/linux/SuSE security discussion.
            All SuSE security announcements are sent to this list.
            To subscribe, send an email to
                <suse-security-subscribe () suse com>.

    suse-security-announce () suse com
        -   SuSE's announce-only mailing list.
            Only SuSE's security annoucements are sent to this list.
            To subscribe, send an email to
                <suse-security-announce-subscribe () suse com>.

    For general information or the frequently asked questions (faq)
    send mail to:
        <suse-security-info () suse com> or
        <suse-security-faq () suse com> respectively.

    ===============================================
    SuSE's security contact is <security () suse com>.
    ===============================================

Regards,
Roman Drahtmüller.
- - --
 -                                                                      -
| Roman Drahtmüller      <draht () suse de> //          "Caution: Cape does |
  SuSE GmbH - Security           Phone: //       not enable user to fly."
| Nürnberg, Germany     +49-911-740530 // (Batman Costume warning label) |
 -                                                                      -
______________________________________________________________________________

    The information in this advisory may be distributed or reproduced,
    provided that the advisory is not modified in any way.
    SuSE GmbH makes no warranties of any kind whatsoever with respect
    to the information contained in this security advisory.

Type Bits/KeyID    Date       User ID
pub  2048/3D25D3D9 1999/03/06 SuSE Security Team <security () suse de>

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