SUSE Security Summary Report SUSE-SR:2006:015
Posted on: 06/30/2006 05:42 PM

A security announcement from SUSE

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______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2006:015
Date: Fri, 30 Jun 2006 16:00:00 +0000
Cross-References: CVE-2006-0898, CVE-2006-2197, CVE-2006-2898
CVE-2006-2916, CVE-2006-3057, CVE-2006-3082

Content of this advisory:
1) Solved Security Vulnerabilities:
- wv2 boundary checks
- perl-Crypt-CBC weak initial vectors
- arts setuid return check problems
- dhcdbd remote denial of service attack
- gpg denial of service attack
- asterisk buffer overflow
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- OpenOffice_org security problems
- opera 9.0 security update
- acroread security update 7.0.8
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.

- wv2 boundary checks

The wv2 library was updated to fix some boundary checks which could
be exploited by maliciously crafted files to access memory outside
bounds and possibly execute arbitrary code. (CVE-2006-2197)

All SUSE Linux versions are affected by this problem.

- perl-Crypt-CBC weak initial vectors

The Perl Crypt::CBC module versions through 2.16 produced weak
cipher text when used with block encryption algorithms with block size
larger than 8 bytes. (CVE-2006-0898)

This affects all SUSE Linux based products containing perl-Crypt-CBC.


- arts setuid return check problems

The KDE sound server aRts lacked checks around some setuid() calls.
This could potentially be used by a local attacker to gain root
privileges. (CVE-2006-2916)

We think that this is not possible since seteuid() is not affected,
but have fixed this problem nevertheless.

All SUSE Linux based products are affected by this problem.


- dhcdbd remote denial of service attack

A remote trigger-able crash was fixed in the DBUS DHCP client 'dhcdbd'
(CVE-2006-3057).

This problem only affects SUSE Linux 10.0.

- gpg denial of service attack

It is possible to crash (denial of service) the GNU Privacy Guard
(gpg) by supplying a specifically crafted message specifying a
very large UID, which leads to an out of memory situation or an
integer overflow.

It is unclear if this problem can be exploited to execute code.

This issue is tracked by the Mitre CVE ID CVE-2006-3082, and affects
all SUSE Linux based products.

Updates for the gpg2 package are still work in progress.

- asterisk buffer overflow

A security problem was fixed in the IAX2 channel driver of Asterisk
that could be used by remote users to execute code or at least
crash Asterisk.

This issue is tracked by the Mitre CVE ID CVE-2006-2898
and affects SUSE Linux 9.2 up to 10.1.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- OpenOffice_org security problems
Several security problems were found in the OpenOffice_org suite.

We are currently pushing out updates for this problem which will
appear in your YaST Online Update / Zen Updater shortly.

Please note that these updates are very large and might take
a while to download.

A full advisory will be released once the update was released for
all distributions.

- opera 9.0 security update
We released a Opera 9.0 security update which was unfortunately
broken due to a RPM problem.

We are preparing fixed packages for this and will release them as
soon as they become available.

A full advisory will be written once this is done.

- acroread security update 7.0.8
The Adobe Acrobat Reader has a new version 7.0.8 available, which
contains security fixes.

Updated packages have already been released for SUSE Linux 9.2
up to 10.1, but are currently still missing for SUSE Linux 9.1,
SUSE Linux Enterprise Server 9 and Novell Linux Desktop 9, due to
a new GTK 2.4 requirement.

A full advisory will be released once these problems have been
reviewed and solved.
______________________________________________________________________________

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 lt;filegt;

replacing lt;filegt; with the name of the file containing the announcement.
The output for a valid signature looks like:

gpg: Signature made lt;DATEgt; using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team lt;security@suse.degt;"

where lt;DATEgt; 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 lt;file.rpmgt;

to verify the signature of the package, replacing lt;file.rpmgt; 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
lt;suse-security-subscribe@suse.comgt;.

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
lt;suse-security-announce-subscribe@suse.comgt;.

For general information or the frequently asked questions (FAQ)
send mail to lt;suse-security-info@suse.comgt; or
lt;suse-security-faq@suse.comgt;.

=====================================================================
SUSE's security contact is lt;security@suse.comgt; or lt;security@suse.degt;.
The lt;security@suse.degt; 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 lt;security@suse.degt;
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key lt;build@suse.degt;

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