[OpenPKG-SA-2002.015] OpenPKG Security Advisory (tetex)
From: OpenPKG (openpkg@openpkg.org)
Date: 12/16/02
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Date: Mon, 16 Dec 2002 17:42:53 +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-2002.015 16-Dec-2002
________________________________________________________________________
Package: tetex
Vulnerability: remote command execution
OpenPKG Specific: no
Dependent Packages: none
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG 1.0 <= tetex-1.0.7-1.0.0 >= tetex-1.0.7-1.0.1
OpenPKG 1.1 <= tetex-1.0.7-1.1.0 >= tetex-1.0.7-1.1.1
OpenPKG CURRENT <= tetex-1.0.7-20021204 >= tetex-1.0.7-20021216
Description:
A vulnerability [1] in the kpathsea(3) library of teTeX was
discovered. This library is used by xdvi(1) and dvips(1). Both
programs call the system(3) function insecurely, which allows a remote
attacker to execute arbitrary commands via cleverly crafted DVI files.
If dvips(1) is used in a print filter, this allows a local or remote
attacker with print permission execute arbitrary code as the printing
system user.
Check whether you are affected by running "<prefix>/bin/rpm -q tetex".
If you have an affected version of the samba package (see above),
please upgrade it according to the solution below.
Solution:
Update existing packages to newly patched versions of teTeX. Select the
updated source RPM appropriate for your OpenPKG release [2][3][4], and
fetch it from the OpenPKG FTP service or a mirror location. Verify its
integrity [5], build a corresponding binary RPM from it and update your
OpenPKG installation by applying the binary RPM [6]. 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 tetex-1.0.7-1.1.1.src.rpm
ftp> bye
$ <prefix>/bin/rpm -v --checksig tetex-1.0.7-1.1.1.src.rpm
$ <prefix>/bin/rpm --rebuild tetex-1.0.7-1.1.1.src.rpm
$ su -
# <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/tetex-1.0.7-1.1.1.*.rpm
________________________________________________________________________
References:
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0836
[2] ftp://ftp.openpkg.org/release/1.0/UPD/
[3] ftp://ftp.openpkg.org/release/1.1/UPD/
[4] ftp://ftp.openpkg.org/current/SRC/
[5] http://www.openpkg.org/security.html#signature
[6] http://www.openpkg.org/tutorial.html#regular-source
________________________________________________________________________
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 example, pipe this message to
the command "gpg --verify --keyserver keyserver.pgp.com".
________________________________________________________________________
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