-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ 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... http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/net-snmp-5.4.... http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/net-snmp-deve... http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/perl-SNMP-5.4... http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/snmp-mibs-5.4... openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/libsnmp15-5.4... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/net-snmp-5.4.... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/net-snmp-deve... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/perl-SNMP-5.4... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/snmp-mibs-5.4... 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-32... openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/net-snmp-32... 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... openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/net-snmp-5.4.1... 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. 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