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______________________________________________________________________________
SUSE Security Announcement
Package: freeradius
Announcement ID: SUSE-SA:2006:019
Date: Tue, 28 Mar 2006 11:00:00 +0000
Affected Products: SUSE LINUX 10.0
SUSE LINUX 9.3
SUSE LINUX 9.2
SUSE LINUX 9.1
SUSE SLES 9
Vulnerability Type: remote code execution
Severity (1-10): 7
SUSE Default Package: no
Cross-References: CVE-2006-1354
Content of This Advisory:
1) Security Vulnerability Resolved:
freeradius input validation problem
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
Insufficient input validation was being done in the EAP-MSCHAPv2
state machine of the FreeRADIUS authentication server.
A malicious attacker could manipulate their EAP-MSCHAPv2 client state
machine to potentially convince the server to bypass authentication
checks. This bypassing could also result in the server crashing.
This is tracked by the Mitre CVE ID CVE-2006-1354.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
None.
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 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/freeradius-1.0.4-4.2.i586.rpm
83c50d73afb03719528c847424179d54
SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/freeradius-1.0.2-5.7.i586.rpm
0bdb0b07c252fc2a6014f30a3898c4e9
SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/freeradius-1.0.0-5.8.i586.rpm
e28918518daba17fb32685179b3cee20
SUSE LINUX 9.1:
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/freeradius-1.0.5-2.14.i586.rpm
9dcb23e71a735ce675f349f673c5441e
Power PC Platform:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/freeradius-1.0.4-4.2.ppc.rpm
7a4dc1e235c9f9dee719b1350044940f
x86-64 Platform:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/freeradius-1.0.4-4.2.x86_64.rpm
998a259dc0adf00b33bd78807785aaae
SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/freeradius-1.0.2-5.7.x86_64.rpm
c73ebda9ead7bc7fa97bc3de2886350f
SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/freeradius-1.0.0-5.8.x86_64.rpm
a60e2a98d954a9505dfba503ec0351c5
SUSE LINUX 9.1:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/freeradius-1.0.5-2.14.x86_64.rpm
d02d45273ed3f2c58f5fd014f80efef6
Sources:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/freeradius-1.0.4-4.2.src.rpm
0eee0bad3d082a2abe180744296e4826
SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/freeradius-1.0.2-5.7.src.rpm
0992254448350dce633cdac1f3ec4349
SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/freeradius-1.0.0-5.8.src.rpm
88142a6e271d6319d2cc86745399a578
SUSE LINUX 9.1:
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/freeradius-1.0.5-2.14.src.rpm
5f75a329ee103fbb59e51d6b5a883d87
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/freeradius-1.0.5-2.14.src.rpm
b96eadb419be2b7288e48d6b58ea7e0b
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/3abbe09e8dae9ddc...
______________________________________________________________________________
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 <file>
replacing <file> with the name of the file where you saved 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 "
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 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 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 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 security@suse.de), 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:
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-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
.
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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