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SuSE Security Announcement
Package: KDE Announcement-ID: SuSE-SA:2003:0026 Date: Thu Apr 24 12:00:00 MEST 2003 Affected products: 7.1, 7.2, 7.3, 8.0, 8.1, 8.2 SuSE eMail Server 3.1 SuSE eMail Server III SuSE Firewall Adminhost VPN SuSE Linux Admin-CD for Firewall SuSE Firewall on CD 2 - VPN SuSE Firewall on CD 2 SuSE Linux Connectivity Server SuSE Linux Enterprise Server 7 SuSE Linux Office Server Vulnerability Type: various security vulnerabilities Severity (1-10): 5 SuSE default package: yes Cross References: http://www.kde.org/info/security/advisory-20030409-1.txt http://www.kde.org/info/security/advisory-20021220-1.txt http://www.kde.org/announcements/announce-3.0.5a.html
Content of this advisory: 1) security vulnerability resolved: Results of security audit of KDE. problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - glibc - pptpd 3) standard appendix (further information)
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1) problem description, brief discussion, solution, upgrade information
The K Desktop Environment KDE allows to generate postscript previews which can be viewed via certain konqueror plug-ins for example. The previews are generated by invoking the ghostscript program but without supplying the "-dSAFER" option as an argument. This allows embedded code to be executed. Additionally to the correction made to the postscript generation process, various other security related bug fixes and patches from KDE 3.0.5a have been incorporated. For more information regarding these fixes please visit the URLs given as cross references.
The complete list of fixed packages is as follows:
kdelibs3 kdelibs3-cups kdebase3 kdebase3-kdm kdebase3-konqueror kdebase3-ksysguardd kdebase3-extra kdegames3 kdegames3-board kdegraphics3-fax kdegraphics3-tex kdegraphics3-viewer kdegraphics3-postscript kdemultimedia3-midi kdemultimedia3-sound kdemultimedia3-video kdenetwork3 kdenetwork3-mail kdenetwork3-chat kdenetwork3-lan kdepim3-organizer kdepim3-kpilot kdesdk3 kdeutils3 kdeutils3-laptop
Due to the large list of update packages we do not provide MD5 sums in this advisory. This would blow up the advisory and make it unreadable. Rather we recommend to either update your system via YaST2 where the auto updater automatically checks the integrity of the packages or to follow the guideline from section 3, "Package authenticity verification".
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.
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2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- glibc New glibc packages will be available soon which fix a RPC XDR integer overflow. The packages are currently being tested.
- pptpd A buffer overflow was found in the pptpd server. New packages will be available soon.
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3) 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. 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 pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key build@suse.de
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On Don, 24 Apr 2003, Sebastian Krahmer wrote:
Pending vulnerabilities in SuSE Distributions and Workarounds:
- glibc
New glibc packages will be available soon which fix a RPC XDR integer overflow. The packages are currently being tested.
- pptpd
A buffer overflow was found in the pptpd server. New packages will be available soon.
Does this mean that unlisted but exisiting vulnerabilities won't get fixed?
On Thu, 24 Apr 2003, Dirk Mueller wrote:
On Don, 24 Apr 2003, Sebastian Krahmer wrote:
Pending vulnerabilities in SuSE Distributions and Workarounds:
- glibc
New glibc packages will be available soon which fix a RPC XDR integer overflow. The packages are currently being tested.
- pptpd
A buffer overflow was found in the pptpd server. New packages will be available soon.
Does this mean that unlisted but exisiting vulnerabilities won't get fixed?
No.
Sebastian
On Mon, 28 Apr 2003, Sebastian Krahmer wrote:
Does this mean that unlisted but exisiting vulnerabilities won't get fixed?
No.
Ok, so when can one expect those fixes?
There are several vulnerabilities "pending" for several months and there is still no update available.
Hi there!
I have a little problem with our Linux server and I don't know, if it's perhaps a security problem.
We run a samba server with SuSE 7.3
Last days, it behaves a little bit strange:
At the first time, I wasn't able to login at the console with the root account. After entering the username root, nothing happens. From remote with ssh, I could login.
Now, after some days, no root login is possible - even ssh says "access denied"
When I login as normal user, I see two files in the root directory of the volume named "devory" and "slamet". I didn't create the files. They have the same date attribute and nearly the same time attribute.
The server itself seems to work without problems.
Is this a security problem, a hard disk problem or what else?
Regards,
Wolfgang Eul
On Wednesday 14 May 2003 22:35, Wolfgang Eul wrote:
Hi there!
I have a little problem with our Linux server and I don't know, if it's perhaps a security problem.
We run a samba server with SuSE 7.3
Last days, it behaves a little bit strange:
At the first time, I wasn't able to login at the console with the root account. After entering the username root, nothing happens. From remote with ssh, I could login.
Now, after some days, no root login is possible - even ssh says "access denied"
When I login as normal user, I see two files in the root directory of the volume named "devory" and "slamet". I didn't create the files. They have the same date attribute and nearly the same time attribute.
The server itself seems to work without problems.
Is this a security problem, a hard disk problem or what else?
You've been hacked!!
Take the machine off the net immediatly because someone else owns it, and godonly knows what they are doing with it.
Similar thing happened to my SuSE 7.3 box last week, and its now running 8.2.
I still don't know how they got in, but I suspect it was via ssh-1 protocol, which for some reason I has not disabled.
In message ENOCOKE.draht.silence.01030424124557000020433-100000@suse, Sebastian Krahmer krahmer@suse.de writes
SuSE Security Announcement Package: KDE Announcement-ID: SuSE-SA:2003:0026 Date: Thu Apr 24 12:00:00 MEST 2003
On my 8.0 system, a change in /opt/kde3/lib/ksirc.so breaks KSirc (on connecting with a server it give an "eval error" which seems to stop many if not all commands working). Is this a security alteration to ksirc.so, or can I safely use the old one (which works)?
(Thanks, I hope this is not too much off topic!)
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Dirk Mueller -
John Andersen -
Roger Hayter -
Sebastian Krahmer -
Wolfgang Eul