[OpenPKG-SA-2002.003] OpenPKG Security Advisory (zlib)

From: OpenPKG (openpkg@openpkg.org)
Date: 03/12/02


Date: Tue, 12 Mar 2002 21:33:40 +0100
From: OpenPKG <openpkg@openpkg.org>
To: bugtraq@securityfocus.com


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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-2002.003 12-Mar-2002
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Package: zlib, cvs, gnupg, rrdtool, rsync
Vulnerability: denial of service, information leakage, code execution
OpenPKG Specific: no

Affected Releases: OpenPKG 1.0
Affected Packages: <= zlib-1.1.3-1.0.0
                     <= cvs-1.11.1p1-1.0.0
                     <= gnupg-1.0.6-1.0.1
                     <= rrdtool-1.0.33-1.0.0
                     <= rsync-2.5.0-1.0.0
Corrected Packages: >= zlib-1.1.3-1.0.1
>= cvs-1.11.1p1-1.0.1
>= gnupg-1.0.6-1.0.2
>= rrdtool-1.0.33-1.0.1
>= rsync-2.5.0-1.0.1
Dependent Packages: gd, ircd, libxml, lynx, mng,
                     openssh, png, snmp, xdelta

Description:
  According to a Zlib Security Advisory [5] and the original CERT
  Security Advisory [6] from Jeffrey P. Lanza, there is a bug in the
  Zlib compression library that may manifest itself as a vulnerability
  in programs that are linked with Zlib. This may allow an attacker to
  conduct a denial-of-service attack, gather information, or execute
  arbitrary code. The vulnerability results from a programming error
  that causes segments of dynamically allocated memory to be released
  more than once.

  Please check whether you are affected by running "<prefix>/bin/rpm -qa
  zlib". If you have the "zlib" package installed and its version
  is affected (see above), we recommend that you immediately upgrade
  it (see Solution). Additionally, we recommend that you rebuild and
  reinstall all dependent OpenPKG packages, too. [2]

Solution:
  Select the updated source RPM appropriate for your OpenPKG release
  [4], fetch it from the OpenPKG FTP service [3] or a mirror location,
  verify its integrity [1], build a corresponding binary RPM from it
  and update your OpenPKG installation by applying the binary RPM [2].
  For the latest OpenPKG 1.0 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/1.0/UPD
  ftp> get zlib-1.1.3-1.0.1.src.rpm
  ftp> bye
  $ <prefix>/bin/rpm --checksig zlib-1.1.3-1.0.1.src.rpm
  $ <prefix>/bin/rpm --rebuild zlib-1.1.3-1.0.1.src.rpm
  $ su -
  # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/zlib-1.1.3-1.0.1.*.rpm

  Now repeat these steps accordingly for all other affected packages
  [7][8][9][10]. Finally, rebuild and reinstall the dependent packages.
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References:
  [1] http://www.openpkg.org/security.html#signature
  [2] http://www.openpkg.org/tutorial.html#regular-source
  [3] ftp://ftp.openpkg.org/release/1.0/UPD/
  [4] ftp://ftp.openpkg.org/release/1.0/UPD/zlib-1.1.3-1.0.1.src.rpm
  [5] http://www.gzip.org/zlib/advisory-2002-03-11.txt
  [6] http://www.kb.cert.org/vuls/id/368819
  [7] ftp://ftp.openpkg.org/release/1.0/UPD/cvs-1.11.1p1-1.0.1.src.rpm
  [8] ftp://ftp.openpkg.org/release/1.0/UPD/gnupg-1.0.6-1.0.2.src.rpm
  [9] ftp://ftp.openpkg.org/release/1.0/UPD/rrdtool-1.0.33-1.0.1.src.rpm
  [10] ftp://ftp.openpkg.org/release/1.0/UPD/rsync-2.5.0-1.0.1.src.rpm
________________________________________________________________________

For security reasons, this advisory was digitally signed with
the OpenPGP public key "OpenPKG <openpkg@openpkg.org>" (ID 63C4CB9F)
of the OpenPKG project which you can find under the official URL
http://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To
check the integrity of this advisory, verify its digital signature by
using GnuPG (http://www.gnupg.org/). For instance, pipe this message to
the command "gpg --verify --keyserver keyserver.pgp.com".
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