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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-2004.038 25-Aug-2004
________________________________________________________________________
Package: zlib
Vulnerability: denial of service
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= zlib-1.2.1-20040207>= zlib-1.2.1-20040825
<= ghostscript-8.14-20040816>= ghostscript-8.14-20040825
<= openpkg-20040811-20040811>= openpkg-20040825-20040825
OpenPKG 2.1 <= zlib-1.2.1-2.1.0>= zlib-1.2.1-2.1.1
<= ghostscript-8.14-2.1.1>= ghostscript-8.14-2.1.2
<= openpkg-2.1.1-2.1.1>= openpkg-2.1.2-2.1.2
OpenPKG 2.0 <= zlib-1.2.1-2.0.0>= zlib-1.2.1-2.0.1
<= ghostscript-8.13-2.0.3>= ghostscript-8.13-2.0.4
<= openpkg-2.0.3-2.0.3>= openpkg-2.0.4-2.0.4
Dependent Packages: abiword aegis aide analog apache apache2 autotrace
blender bsdtar cadaver citadel clamav cups curl
cvs cvsps cvsync dia doxygen emacs ethereal expat
file firefox gd geoip gif2png gift-gnutella
gift-openft gimp gmime gnome-vfs gnupg gnuplot
htdig imagemagick ircd jitterbug kcd lbreakout lcms
libarchive libwmf libxml lout lynx mixmaster mng
mozilla mplayer mrtg mysql mysql3 mysql41 mysqlcc
nagios neon netpbm opencdk openpkg openssh pdflib
perl-comp perl-gd perl-tk pgpdump php php3 php5 png
postgresql pstoedit python qt ripe-dbase rrdtool
scribus sio subversion tardy tetex tiff tightvnc
transfig ttmkfdir w3m webalizer wml wv xdelta
xemacs xfig xmame xplanet xv zimg
Description:
Triggered by a Debian bug report [1], a denial of service vulnerability
was found in the ZLib compression library [0] versions 1.2.x
(older versions are not affected). The problem arises from incorrect
error handling in the inflate() and inflateBack() functions. The
Common Vulnerabilities and Exposures (CVE) project assigned the id
CAN-2004-0797 [2] to the problem.
Please check whether you are affected by running "/bin/openpkg
rpm -q zlib". If you have the "zlib" package installed and its version
is affected (see above), we recommend that you immediately upgrade it
(see Solution) and its dependent packages (see above) as well [3][4].
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[5][6], fetch it from the OpenPKG FTP service [7][8] or a mirror
location, verify its integrity [9], build a corresponding binary RPM
from it [3] and update your OpenPKG installation by applying the
binary RPM [4]. For the most recent release OpenPKG 2.1, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.1/UPD
ftp> get zlib-1.2.1-2.1.1.src.rpm
ftp> bye
$ /bin/openpkg rpm -v --checksig zlib-1.2.1-2.1.1.src.rpm
$ /bin/openpkg rpm --rebuild zlib-1.2.1-2.1.1.src.rpm
$ su -
# /bin/openpkg rpm -Fvh /RPM/PKG/zlib-1.2.1-2.1.1.*.rpm
Additionally, rebuild and reinstall any other dependent packages (see
above) already installed in your OpenPKG instance. Only updating the
"zlib" package is NOT sufficient because of the statically linked old
"libz.a" code residing in the executables of other dependent packages.
Due to transitive dependencies and because "zlib" is used by such many
other libraries and programs, the convenient way to upgrade "zlib" and
all affected packages is to use the "openpkg-tools" package:
$ su -
# /bin/openpkg build -Ua | sh
________________________________________________________________________
References:
[0] http://www.gzip.org/zlib/
[1] http://bugs.debian.org/252253
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0797
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/2.1/UPD/zlib-1.2.1-2.1.1.src.rpm
[6] ftp://ftp.openpkg.org/release/2.0/UPD/zlib-1.2.1-2.0.1.src.rpm
[7] ftp://ftp.openpkg.org/release/2.1/UPD/
[8] ftp://ftp.openpkg.org/release/2.0/UPD/
[9] http://www.openpkg.org/security.html#signature
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG " (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
________________________________________________________________________
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