A RealPlayer security update is available for SUSE Linux 9.2 and Novell Linux Desktop 9
______________________________________________________________________________
SUSE Security Announcement
Package: RealPlayer
Announcement-ID: SUSE-SA:2005:014
Date: Wed, 09 Mar 2005 12:00:00 +0000
Affected products: 9.2
Novell Linux Desktop 9
Vulnerability Type: remote code execution
Severity (1-10): 8
SUSE default package: yes
Cross References: CAN-2005-0455
CAN-2005-0611
Content of this advisory:
1) security vulnerability resolved:
remote buffer overflow problems
problem description
2) solution/workaround
3) special instructions and notes
4) package location and checksums
5) pending vulnerabilities, solutions, workarounds:
See SUSE Security Summary Report.
6) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion
Two security problems were found in the media player RealPlayer:
- CAN-2005-0455: A buffer overflow in the handling of .smil files.
- CAN-2005-0611: A buffer overflow in the handling of .wav files.
Both buffer overflows can be exploited remotely by providing URLs
opened by RealPlayer.
More informations can be found on this URL:
http://service.real.com/help/faq/security/050224_player/EN/
This updates fixes the problems.
2) solution/workaround
A workaround for this problem would be to deinstall the RealPlayer
package by running this command as root user:
rpm -e RealPlayer
Please consider doing so if you do not want to view Real content.
3) special instructions and notes
None.
4) package location and checksums
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update.
Our maintenance customers are being notified individually. The packages
are being offered to install from the maintenance web.
x86 Platform:
SUSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/RealPlayer-10.0.3-0.1.i586.rpm
cf95cd77f9abda58abff3b488c55a515
______________________________________________________________________________
5) Pending vulnerabilities in SUSE Distributions and Workarounds:
See SUSE Security Summary Report.
______________________________________________________________________________
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 <name-of-the-file.rpm>
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 <file.rpm>
to verify the signature of the package, where <file.rpm> 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-subscribe@suse.com>.
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
<suse-security-announce-subscribe@suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info@suse.com> or
<suse-security-faq@suse.com> respectively.
====================================================================
SUSE's security contact is <security@suse.com> or <security@suse.de>.
@suse.de>.
The <security@suse.de> 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 <security@suse.de>
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