-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
---------------------------------------------------------------------------
PROGENY LINUX SYSTEMS -- SECURITY ADVISORY PROGENY-SA-2001-07
---------------------------------------------------------------------------
Topic: Netscape Navigator fails to protect privacy
Software: netscape
Announced: 2001-04-09
Credits: Florian Wesch <fwat_private>
Affects: Progeny Debian (netscape prior to 4.77)
Debian GNU/Linux (netscape prior to 4.77)
Vendor-Status: New Version Released (4.77 on 2001-03-26)
Corrected: 2001-04-19
Progeny Only: NO
$Id: PROGENY-SA-2001-07,v 1.2 2001/04/20 00:21:42 jdaily Exp $
---------------------------------------------------------------------------
SYNOPSIS
The Netscape browser sometimes handles JavaScript in an insecure
manner. In certain situations, it allows remote web sites to send
JavaScript commands in an unorthodox manner that could compromise
private data.
PROBLEM DESCRIPTION
GIF-format graphics can contain comments, typically used by graphic
designers and editors for recordkeeping. Florian Wesch discovered
that the Netscape browser, while displaying a GIF image, can process
JavaScript commands stored in GIF comments, and that commands issued
in this unorthodox manner can do things that JavaScript commands are
usually unable to do.
IMPACT
A web site can gain access to browser history and possibly other
data kept in Netscape's browser that wouldn't normally be available.
SOLUTION
Upgrade to a fixed version of Netscape's browser. Netscape Navigator
version 4.77 corrects the problem. For your convenience, you may
upgrade to the package netscape_4.77-1progeny2.
WORKAROUND
The risk can be avoided without an upgrade by disabling JavaScript in
the browser.
UPDATING VIA APT-GET
1. Ensure that your /etc/apt/sources.list file has a URI for Progeny's
update repository:
deb http://archive.progeny.com/progeny updates/newton/
2. Update your cache of available packages for apt(8).
Example:
# apt-get update
3. If you are currently running the Netscape browser, please exit the
application.
4. Using apt(8), install the new package. apt(8) will download the
update, verify its integrity with md5, and then install the
package on your system with dpkg(8).
Example:
# apt-get install netscape
UPDATING VIA DPKG
We do not recommend upgrading Netscape's browser using dpkg. Please
use apt.
MORE INFORMATION
See http://www.securityfocus.com/archive/1/175060 for further details
of the vulnerability.
Progeny advisories can be found at http://www.progeny.com/security/.
---------------------------------------------------------------------------
pub 1024D/F92D4D1F 2001-04-04 Progeny Security Team <securityat_private>
- -----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.4 (GNU/Linux)
Comment: For info see http://www.gnupg.org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=6dRm
- -----END PGP PUBLIC KEY BLOCK-----
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.4 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iEYEARECAAYFAjrfgQ8ACgkQScF9I/ktTR8qigCfUf8nq4Y+tan18oETjRCpzn1V
JnoAn2aqhJ7VSlaPKQyutEs+Z9dIVd80
=jLcm
-----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Fri Apr 20 2001 - 00:23:49 PDT