______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2005:016
Date: Fri, 17 Jun 2005 14:00:00 +0000
Cross-References: CAN-2005-0160
CAN-2005-0161
CAN-2005-0961

Content of this advisory:
1) Solved Security Vulnerabilities:
- gpg2 broken S/MIME signing
- telnet environment option disclosure
- unace buffer overflows
- horde cross site scripting

2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- postgresql various fixes
- gaim denial of service attack
- perl-Net-Server denial of service attack
- Sun Java applet privilege problems
3) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Solved Security Vulnerabilities

To avoid flooding mailing lists with SUSE Security Announcements for minor
issues, SUSE Security releases weekly summary reports for the low profile
vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
or download URLs like the SUSE Security Announcements that are released for
more severe vulnerabilities.

Fixed packages for the following incidents are already available on our FTP
server and via the YaST Online Update.

- gpg2

The S/MIME signing using gpg2 was broken in SUSE Linux 9.3.
Updated packages were released to fix this problem.


- telnet

The telnet client protocol can be abused by a malicious server to
read the environment of the client site. This information in turn
can be used as preparation for further attacks.

This bug was reported by iDEFENSE [IDEF0865] and is tracked by the
Mitre CVE ID

Note that this patch changes the behavior of the telnet client
regarding the rule of exported environment variables. Please consult
the man page for further details.

All SUSE Linux products are affected.

- unace

The unpacker "unace" had several buffer overflows while extracting,
testing, or listing an archive file (CAN-2005-0160) as well
as a buffer overflow while handling long command-line options
(CAN-2005-0161).

This affects all SUSE Linux versions including unace (8.2 up to 9.3).

- horde cross site scripting

A cross site scripting problem was fixed in horde application
framework.

This issue is tracked by the Mitre CVE ID CAN-2005-0961.

All SUSE Linux 9.2 and SUSE Linux Enterprise Server 9 were affected.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- postgresql

Two security problems in PostgreSQL may allow an unprivileged database
user to crash the backend process or allow an unprivileged user to
gain the privileges of a database superuser.

To fix those problems please carefully read the instructions on
http://www.postgresql.org/about/news.315

This is tracked by the Mitre CVE IDs CAN-2005-1409 and CAN-2005-1410

All SUSE LINUX based products except for SLES8 are affected.

- gaim

Several new denial of service problems were found in the gaim
Instant Messenger, affecting all SUSE Linux based distributions
including gaim.

Updates are being prepared.

- perl-Net-Server

We earlier reported a format string problem in the perl-Net-Server
perl modules. Against earlier suspicions this cannot be used to
execute code, but just to crash (denial of service) the respective
service.

This is tracked by the Mitre CVE ID CAN-2005-1127.

- java applet privilege problems

A critical flaw was found in the Sun Java run time environment which
allows untrusted applets or JLNP (webstartable) files to circumvent
access restrictions and read/write files on the system and start
applications.

We are currently preparing updates for this problem.

All SUSE Linux products containing Sun Java are affected.
______________________________________________________________________________

3) Authenticity Verification and Additional Information

- Announcement authenticity verification:

SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.

To verify the signature of the announcement, save it as text into a file
and run the command

gpg --verify <file>

replacing <file> with the name of the file containing the announcement.
The output for a valid signature looks like:

gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team <security@suse.de>"

where <DATE> is replaced by the date the document was signed.

If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command

gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

- Package authenticity verification:

SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and integrity of a
package needs to be verified to ensure that it has not been tampered with.

The internal 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, replacing <file.rpm> with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.

This key is automatically imported into the RPM database (on RPMv4-based
distributions) and the gpg key ring of 'root' during installation. You can
also find it on the first installation CD and included at the end of this
announcement.

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

suse-security@suse.com
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail 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 e-mail 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>.

====================================================================
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, the
clear text signature should show proof of the authenticity of the text.

SUSE Linux Products GmbH provides 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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