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Home » Hacking News » [OpenPKG-SA-2003.001] OpenPKG Security Advisory (png)

[OpenPKG-SA-2003.001] OpenPKG Security Advisory (png)

by Nikola Strahija on January 15th, 2003 According to a Debian security advisory based on hints from Glenn Randers-Pehrson [0], a buffer overflow vulnerability exists in the Portable Network Graphics (PNG) library libpng [1] in connection with 16-bit samples.


OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
[email protected] [email protected]
OpenPKG-SA-2003.001 15-Jan-2003
________________________________________________________________________

Package: png
Vulnerability: buffer overflow vulnerability
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= png-1.2.5-20021003 >= png-1.2.5-20030115
OpenPKG 1.1 <= png-1.2.4-1.1.0 >= png-1.2.4-1.1.1
OpenPKG 1.0 <= png-1.2.0-1.0.0 >= png-1.2.0-1.0.1

Affected Releases: Dependent Packages:
OpenPKG CURRENT apache emacs gd gd1 gif2png gnuplot graphviz
imagemagick libwmf netpbm perl-gd perl-tk pstoedit
webalizer wml
OpenPKG 1.1 apache emacs gd gd1 gnuplot graphviz imagemagick
perl-gd wml
OpenPKG 1.0 apache gd perl-gd

Description:
According to a Debian security advisory based on hints from Glenn
Randers-Pehrson [0], a buffer overflow vulnerability exists in the
Portable Network Graphics (PNG) library libpng [1] in connection with
16-bit samples. The starting offsets for the loops are calculated
incorrectly which may cause a buffer overrun beyond the beginning of
the row buffer. The Common Vulnerabilities and Exposures (CVE) project
assigned the id CAN-2002-1363 [2] to the problem.

Please check whether you are affected by running "/bin/rpm
-qa png". If you have the "png" package installed and its version is
affected (see above), we recommend that you immediately upgrade it
(see Solution) and it's dependent packages (see above), if any, too.
[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 current release OpenPKG 1.1, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).

$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/1.1/UPD
ftp> get png-1.2.4-1.1.1.src.rpm
ftp> bye
$ /bin/rpm -v --checksig png-1.2.4-1.1.1.src.rpm
$ /bin/rpm --rebuild png-1.2.4-1.1.1.src.rpm
$ su -
# /bin/rpm -Fvh /RPM/PKG/png-1.2.4-1.1.1.*.rpm

Additionally, we recommend that you rebuild and reinstall
all dependent packages (see above), if any, too. [3][4]
________________________________________________________________________

References:
[0] http://www.debian.org/security/2002/dsa-213
[1] http://www.libpng.org/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1363
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/1.0/UPD/png-1.2.0-1.0.1.src.rpm
[6] ftp://ftp.openpkg.org/release/1.1/UPD/png-1.2.4-1.1.1.src.rpm
[7] ftp://ftp.openpkg.org/release/1.0/UPD/
[8] ftp://ftp.openpkg.org/release/1.1/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 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".
________________________________________________________________________

-----BEGIN PGP SIGNATURE-----
Comment: OpenPKG

iD8DBQE+JYCpgHWT4GPEy58RAk3eAJ9dG8BbE6BNmvWA2GOZuRNWL5lLZQCghoWd
P4HMyx1pxytvcak6xgBPRPM=
=Ulpx
-----END PGP SIGNATURE-----


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