-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: postfix Announcement ID: SUSE-SA:2010:011 Date: Mon, 15 Feb 2010 14:00:00 +0000 Affected Products: openSUSE 11.2 Vulnerability Type: remote denial of service CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) SUSE Default Package: yes Cross-References: CVE-2010-0230 Content of This Advisory: 1) Security Vulnerability Resolved: postfix port open 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 The value of SMTPD_LISTEN_REMOTE accidentally defaulted to 'yes'. The postfix smtp daemon therefore was reachable over the network by default. This update resets the value to 'no' in /etc/sysconfig/mail. If you intentionally want postfix to listen for remote connections you need to manually set it to 'yes' again. This update also fixes a problem where the relay database was not created and postfix refused to start. 2) Solution or Work-Around Manually set SMTPD_LISTEN_REMOTE to 'no' and run # SuSEconfig --module postfix 3) Special Instructions and Notes Please restart postfix after the update. Watch out for SuSEconfig output indicating that /etc/postfix/main.cf wasn't fixed due to local modifications. In that case either rename /etc/postfix/main.cf.SuSEconfig to /etc/postfix/main.cf or manually run # postconf -e "inet_interfaces = localhost" 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: openSUSE 11.2: http://download.opensuse.org/debug/update/11.2/rpm/i586/postfix-debuginfo-2.... http://download.opensuse.org/debug/update/11.2/rpm/i586/postfix-debugsource-... http://download.opensuse.org/debug/update/11.2/rpm/i586/postfix-mysql-debugi... http://download.opensuse.org/debug/update/11.2/rpm/i586/postfix-postgresql-d... http://download.opensuse.org/update/11.2/rpm/i586/postfix-2.6.1-2.6.1.i586.r... http://download.opensuse.org/update/11.2/rpm/i586/postfix-devel-2.6.1-2.6.1.... http://download.opensuse.org/update/11.2/rpm/i586/postfix-doc-2.6.1-2.6.1.i5... http://download.opensuse.org/update/11.2/rpm/i586/postfix-mysql-2.6.1-2.6.1.... http://download.opensuse.org/update/11.2/rpm/i586/postfix-postgresql-2.6.1-2... x86-64 Platform: openSUSE 11.2: http://download.opensuse.org/debug/update/11.2/rpm/x86_64/postfix-debuginfo-... http://download.opensuse.org/debug/update/11.2/rpm/x86_64/postfix-debugsourc... http://download.opensuse.org/debug/update/11.2/rpm/x86_64/postfix-mysql-debu... http://download.opensuse.org/debug/update/11.2/rpm/x86_64/postfix-postgresql... http://download.opensuse.org/update/11.2/rpm/x86_64/postfix-2.6.1-2.6.1.x86_... http://download.opensuse.org/update/11.2/rpm/x86_64/postfix-devel-2.6.1-2.6.... http://download.opensuse.org/update/11.2/rpm/x86_64/postfix-doc-2.6.1-2.6.1.... http://download.opensuse.org/update/11.2/rpm/x86_64/postfix-mysql-2.6.1-2.6.... http://download.opensuse.org/update/11.2/rpm/x86_64/postfix-postgresql-2.6.1... Sources: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/src/postfix-2.6.1-2.6.1.src.rpm ______________________________________________________________________________ 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. 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. - 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-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 . ===================================================================== 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. 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