[OpenPKG-SA-2002.011] OpenPKG Security Advisory (bind, bind8)

[OpenPKG <openpkg () openpkg org>]

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OpenPKG Security Advisory                            The OpenPKG Project
http://www.openpkg.org/security.html              http://www.openpkg.org
openpkg-security () openpkg org                         openpkg () openpkg org
OpenPKG-SA-2002.011                                          15-Nov-2002
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Package:             bind, bind8
Vulnerability:       denial of service, arbitrary code execution
OpenPKG Specific:    no

Dependent Packages:  none

Affected Releases:   Affected Packages:     Corrected Packages:
OpenPKG 1.0          <= bind-8.2.6-1.0.1    >= bind-8.2.6-1.0.2
OpenPKG 1.1          <= bind8-8.3.3-1.1.0   >= bind8-8.3.3-1.1.1
OpenPKG CURRENT      <= bind8-8.3.3-2002082 >= bind8-8.3.3-20021114

Description:
  The Internet Software Consortium (ISC) [1] has discovered or has been
  notified of several bugs which can result in vulnerabilities of varying
  levels of severity in BIND [2][3]. These problems include buffer overflows,
  stack revealing, divide by zero, null pointer dereferencing, and more [4].
  A subset of these vulnerabilities exist in the BIND packages distributed by
  OpenPKG.

  Please check whether you are affected by running "<prefix>/bin/rpm -qa |
  grep bind". If you have an affected version of the "bind" or "bind8" package
  (see above), upgrade it according to the solution below.

Workaround:
  Because disabling recursion or disabling DNSSEC is a workaround to only a
  subset of the aforementioned problems, it is not a recommended aproach.

Solution:
  Since these vulnerabilities do not exist in BIND version 9.2.1, one solution
  simply involves upgrading to it. The packages bind-9.2.1-1.1.0 in OpenPKG
  1.1 [5], and bind-9.2.1-20021111 in OpenPKG CURRENT [6] are both candidates
  in this respect. Be warned that although such later versions of BIND are
  stable, there exist large differences between BIND 8 and BIND 9 software.

  A lighter approach involves updating existing packages to newly patched
  versions of BIND 8. Select the updated source RPM appropriate
  for your OpenPKG release [7][8][9], and fetch it from the OpenPKG FTP service
  or a mirror location. Verify its integrity [10], build a corresponding
  binary RPM from it and update your OpenPKG installation by applying the
  binary RPM [11]. For the latest OpenPKG 1.1 release, perform the following
  operations to permanently fix the security problem (for other releases
  adjust accordingly).

  $ ftp ftp.openpkg.org
  ftp> bin
  ftp> cd release/1.1/UPD
  ftp> get bind8-8.3.3-1.1.1.src.rpm
  ftp> bye
  $ <prefix>/bin/rpm -v --checksig bind8-8.3.3-1.1.1.src.rpm
  $ <prefix>/bin/rpm --rebuild bind8-8.3.3-1.1.1.src.rpm
  $ su -
  # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/bind8-8.3.3-1.1.1.*.rpm
  # <prefix>/etc/rc bind8 stop start
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References:
  [1]  http://www.isc.org/
  [2]  http://www.isc.org/products/BIND/
  [3]  http://www.cert.org/advisories/CA-2002-31.html
  [4]  http://www.isc.org/products/BIND/bind-security.html
  [5]  ftp://ftp.openpkg.org/release/1.1/SRC/bind-9.2.1-1.1.0.src.rpm
  [6]  ftp://ftp.openpkg.org/current/SRC/bind-9.2.1-20021111.src.rpm
  [7]  ftp://ftp.openpkg.org/release/1.0/UPD/bind-8.2.6-1.0.2.src.rpm
  [8]  ftp://ftp.openpkg.org/release/1.1/UPD/bind8-8.3.3-1.1.1.src.rpm
  [9]  ftp://ftp.openpkg.org/current/SRC/bind8-8.3.3-20021114.src.rpm
  [10] http://www.openpkg.org/security.html#signature
  [11] http://www.openpkg.org/tutorial.html#regular-source
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