Home / vulnerabilities SUSE-SA-2008-039.txt
Posted on 01 August 2008
Source : packetstormsecurity.org Link
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______________________________________________________________________________
SUSE Security Announcement
Package: net-snmp
Announcement ID: SUSE-SA:2008:039
Date: Fri, 01 Aug 2008 13:00:00 +0000
Affected Products: openSUSE 10.2
openSUSE 10.3
openSUSE 11.0
SUSE SLES 9
Novell Linux Desktop 9
Open Enterprise Server
Novell Linux POS 9
SUSE Linux Enterprise Desktop 10 SP1
SLE SDK 10 SP1
SLE SDK 10 SP2
SUSE Linux Enterprise Server 10 SP1
SUSE Linux Enterprise Desktop 10 SP2
SUSE Linux Enterprise Server 10 SP2
Vulnerability Type: authentication bypass, denial-of-service
Severity (1-10): 6
SUSE Default Package: no
Cross-References: CVE-2008-0960
CVE-2008-2292
Content of This Advisory:
1) Security Vulnerability Resolved:
- authentication bypass
- denial-of-service
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
- viewvc/subversion
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
The net-snmp daemon implements the "simple network management protocol".
The version 3 of SNMP as implemented in net-snmp uses the length of the
HMAC in a packet to verify against a local HMAC for authentication.
An attacker can therefore send a SNMPv3 packet with a one byte HMAC and
guess the correct first byte of the local HMAC with 256 packets (max).
Additionally a buffer overflow in perl-snmp was fixed that can cause a
denial-of-service/crash.
2) Solution or Work-Around
Please install the update package.
3) Special Instructions and Notes
Please restart net-snmp 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 <file.rpm>
to apply the update, replacing <file.rpm> with the filename of the
downloaded RPM package.
x86 Platform:
openSUSE 11.0:
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/libsnmp15-5.4.1-77.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/net-snmp-5.4.1-77.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/net-snmp-devel-5.4.1-77.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/perl-SNMP-5.4.1-77.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/snmp-mibs-5.4.1-77.2.i586.rpm
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/libsnmp15-5.4.1-19.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/net-snmp-5.4.1-19.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/net-snmp-devel-5.4.1-19.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/perl-SNMP-5.4.1-19.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/snmp-mibs-5.4.1-19.2.i586.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/net-snmp-5.4.rc2-8.i586.rpm
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/net-snmp-devel-5.4.rc2-8.i586.rpm
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/perl-SNMP-5.4.rc2-8.i586.rpm
x86-64 Platform:
openSUSE 11.0:
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/net-snmp-32bit-5.4.1-77.2.x86_64.rpm
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/net-snmp-32bit-5.4.1-19.2.x86_64.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/net-snmp-32bit-5.4.rc2-8.x86_64.rpm
Sources:
openSUSE 11.0:
http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/net-snmp-5.4.1-77.2.src.rpm
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/net-snmp-5.4.1-19.2.src.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/net-snmp-5.4.rc2-8.src.rpm
Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:
Open Enterprise Server
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
Novell Linux POS 9
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
Novell Linux Desktop 9
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SUSE Linux Enterprise Server 10 SP1
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SUSE Linux Enterprise Server 10 SP2
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SLE SDK 10 SP2
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SLE SDK 10 SP1
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SUSE Linux Enterprise Desktop 10 SP1
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SUSE Linux Enterprise Desktop 10 SP2
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
SUSE SLES 9
http://download.novell.com/index.jsp?search=Search&keywords=71093bdfd49361f6dbe32a8fde43b848
______________________________________________________________________________
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
- viewvc/subversion
This update of subversion fixes multiple vulnerabilities.
- CVE-2008-1290: list CVS or SVN commits on "all-forbidden" files
- CVE-2008-1291: directly access hidden CVSROOT folders
- CVE-2008-1292: expose restricted content via the revision view,
the log history, or the diff view
______________________________________________________________________________
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 <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 the 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 at
the end of this announcement.
- SUSE runs two security mailing lists to which any interested party may
subscribe:
opensuse-security@opensuse.org
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security+subscribe@opensuse.org>.
opensuse-security-announce@opensuse.org
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security-announce+subscribe@opensuse.org>.
=====================================================================
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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