Hoy estaba buscando Bulnerabilidades y encontre esto!! leeanlo esta en ingles pero es muy informativo.

SUSE Security Announcement

Package: mozilla
Announcement-ID: SUSE-SA:2004:036
Date: Wednesday, Oct 6th 14:36:39 MEST 2004
Affected products: 8.1, 8.2, 9.0, 9.1
SUSE Linux Enterprise Server 8, 9
SUSE Linux Desktop 1.0
Vulnerability Type: various vulnerabilities
Severity (1-10): 5
SUSE default package: yes
Cross References: http://www.mozilla.org/security/

Content of this advisory:
1) security vulnerability resolved:
- various vulnerabilities
problem description
2) solution/workaround
3) special instructions and notes
4) package location and checksums
5) pending vulnerabilities, solutions, workarounds:
- openmotif
6) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion

During the last months a number of security problems have been fixed
in Mozilla and Mozilla based brwosers. These include:

- CAN-2004-0718: content in unrelated windows could be modified
- CAN-2004-0722: integer overflow in the SOAPParameter object constructor
- CAN-2004-0757: heap-based buffer overflow in the SendUidl of POP3 code
- CAN-2004-0758: denial-of-service with malicious SSL certificates
- CAN-2004-0759: read files via JavaScript
- CAN-2004-0760: MIME code handles %00 incorrectly
- CAN-2004-0761: spoofing of security lock icon
- CAN-2004-0762: manipulation of XPInstall Security dialog box
- CAN-2004-0763: spoofing of SSL certificates by using redirects and
JavaScript
- CAN-2004-0764: hijacking the user interface via the "chrome" flag and
XML User Interface Language (XUL) files
- CAN-2004-0765: spoofing SSL certificates due to incorrecting comparsion
of hostnames
- CAN-2004-0902: Several heap based buffer overflows in Mozilla Browsers.
- CAN-2004-0903: Stack-based buffer overflow in the writeGroup function
in vcard handling.
- CAN-2004-0904: Overflow in BMP bitmap decoding.
- CAN-2004-0905: Crossdomain scripting and possible code execution by
javascript drag and drop.
- CAN-2004-0906: XPI Installer sets insecure permissions, allowing local
users to overwrite files of the user.
- CAN-2004-0908: Allow untrusted javascript code to read and write to the
clipboard.
- CAN-2004-0909: Allow remote attackers to trick the user into performing
dangerous operations by modifying security relevant dialog boxes.

2) solution/workaround

Since there is no workaround, we recommend an update in any case
if you use the mozilla browser.

3) special instructions and notes

After successfully updating the package(s) you need to close
all instances of the web browser and restart it again.

4) package location and checksums

Due to the large amount of updated packages and dependencies we do
not provide MD5-sums this time. The updates are cryptographically
signed and are available for download via the Yast Online Update.

______________________________________________________________________________

5) Pending vulnerabilities in SUSE Distributions and Workarounds:

- openmotif
The XPM security problems within openmotif have been fixed. New packages
are available on our ftp servers.

______________________________________________________________________________

6) standard appendix: authenticity verification, additional information

- Package authenticity verification:

SUSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. There are two verification methods that can be used
independently from each other to prove the authenticity of a downloaded
file or rpm package:
1) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.

1) execute the command
md5sum
after you downloaded the file from a SUSE ftp server or its mirrors.
Then, compare the resulting md5sum with the one that is listed in the
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.

2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig
to verify the signature of the package, where is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an un-installed rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SUSE in rpm packages for SUSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SUSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the top-level directory of the first CD (pubring.gpg)
and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .

- SUSE runs two security mailing lists to which any interested party may
subscribe:

suse-security@suse.com
- general/linux/SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an email to
.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an email to
.

For general information or the frequently asked questions (faq)
send mail to:
or
respectively.

=====================================================================
SUSE's security contact is or .
The public key is listed below.
=====================================================================
______________________________________________________________________________

The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular,
it is desired that the clear-text signature shows proof of the
authenticity of the text.
SUSE Linux AG makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.

Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key

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