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Home » Security Advisories» SUSE » Evolution remote code execution

Evolution remote code execution

Several format string bugs allowed remote attackers to cause evolution to crash or even execute code via full vCard data, contact data from remote LDAP servers, task list data from remote servers or calendar entries.

  • Vendor: SUSE
  • Vendor ID: SA:2005:054
  • Date: September 16, 2005


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

______________________________________________________________________________

SUSE Security Announcement

Package: evolution
Announcement ID: SUSE-SA:2005:054
Date: Fri, 16 Sep 2005 13:00:00 +0000
Affected Products: Novell Linux Desktop 9
SUSE LINUX 9.2
SUSE LINUX 9.3
Vulnerability Type: remote code execution
Severity (1-10): 6
SUSE Default Package: yes
Cross-References: CAN-2005-2549, CAN-2005-2550

Content of This Advisory:
1) Security Vulnerability Resolved:
evolution format string bugs
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
- See SUSE Security Summary Report
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

Several format string bugs allowed remote attackers to cause
evolution to crash or even execute code via full vCard data, contact
data from remote LDAP servers, task list data from remote servers
(CAN-2005-2549) or calendar entries (CAN-2005-2550).

2) Solution or Work-Around

There is no known workaround, please install the update packages.

3) Special Instructions and Notes

Please close and restart all running instances of evolution after
the update.

4) Package Location and Checksums

The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command

rpm -Fhv

to apply the update, replacing with the filename of the
downloaded RPM package.


x86 Platform:

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/evolution-2.2.1-7.4.i586.rpm
efce1fe443ee6ed166b54b1a5e3b98d5
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/evolution-data-server-1.2.1-7.3.i586.rpm
40a63375e5251616fbc09eb60af677c0
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/evolution-data-server-devel-1.2.1-7.3.i586.rpm
d2402cf9eb95f22f4a51ef2649f16c85
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/evolution-devel-2.2.1-7.4.i586.rpm
3859e68fc6cb698320eb79eae81b4539
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/evolution-pilot-2.2.1-7.4.i586.rpm
31492dd7d6e1b033adbd2bc6a3db2b9f
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-data-server-32bit-9.3-7.2.x86_64.rpm
08122624504e8bd0e2761e1ca628ddb6

SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/evolution-2.0.1-6.8.i586.rpm
fdf65a48e6cbc5b6643c50c4eef5ae5a
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/evolution-devel-2.0.1-6.8.i586.rpm
5050f1a2f4291f0a5c6b6fdf12c1fe81
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/evolution-pilot-2.0.1-6.8.i586.rpm
d64777fb32d0693af25d8e79e7fc9775

x86-64 Platform:

SuSE Linux 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-2.2.1-7.4.x86_64.rpm
7afad6527cf6975154de0d30954a089e
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-data-server-1.2.1-7.3.x86_64.rpm
c986668e572836b02e8329d438fd366b
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-data-server-devel-1.2.1-7.3.x86_64.rpm
b8bd4014dbf302a1b1a87ebf5a0df0f3
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-devel-2.2.1-7.4.x86_64.rpm
b8104af8109a4d87cf90498af3fdc715
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/evolution-pilot-2.2.1-7.4.x86_64.rpm
d17145cd0fcb2d54169a185a990c3c65
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/evolution-2.2.1-7.4.src.rpm
2fe71a8fd727fe03b7f6e1a3604b4528
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/evolution-data-server-1.2.1-7.3.src.rpm
e8fa87abca06e333bc6ceb16db771124

SuSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/evolution-2.0.1-6.8.x86_64.rpm
ed6ab2108d1a2f7325f582455e2cec87
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/evolution-devel-2.0.1-6.8.x86_64.rpm
df0b35e88427feec0724857b9d6af05d
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/evolution-pilot-2.0.1-6.8.x86_64.rpm
c7e60d7e67d51d89608da804c5d1b9cf
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/evolution-2.0.1-6.8.src.rpm
0365c61c839221763ff51d9594e5a765

Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:

http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/c4057f5954b5370db387b3407e4a9192.html
http://portal.suse.com/psdb/c4057f5954b5370db387b3407e4a9192.html

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

- See SUSE Security Summary Report

______________________________________________________________________________

6) 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

replacing with the name of the file where you saved the
announcement. The output for a valid signature looks like:

gpg: Signature made using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "

where 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 the integrity of
a package needs to be verified to ensure that it has not been tampered
with.

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) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement

1) The internal 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, replacing with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from [email protected] 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 at
the end of this announcement.

2) If you need an alternative means of verification, use the md5sum
command to verify the authenticity of the packages. 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
SUSE security announcement. Because the announcement containing the
checksums is cryptographically signed (by [email protected]), the
checksums show proof of the authenticity of the package if the
signature of the announcement is valid. Note that the md5 sums
published in the SUSE Security Announcements are valid for the
respective packages only. Newer versions of these packages cannot be
verified.

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

[email protected]
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
.

[email protected]
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
.

For general information or the frequently asked questions (FAQ),
send mail to or
.

=====================================================================
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, 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
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key

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