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SuSE alert SUSE-SA:2005:019 (mysql)

From:  Marcus Meissner <>
Subject:  [suse-security-announce] SUSE Security Announcement: MySQL vulnerabilities (SUSE-SA:2005:019)
Date:  Thu, 24 Mar 2005 18:13:00 +0100

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: mysql Announcement-ID: SUSE-SA:2005:019 Date: Thu, 24 Mar 2005 16:00:00 +0000 Affected products: 8.2, 9.0, 9.1, 9.2 SUSE Linux Desktop 1.0 SUSE Linux Enterprise Server 8, 9 Novell Linux Desktop 9 Vulnerability Type: remote code execution Severity (1-10): 6 SUSE default package: no Cross References: CAN-2005-0709 CAN-2005-0710 CAN-2005-0711 Content of this advisory: 1) security vulnerability resolved: security problems in mysql problem description 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: See SUSE Security Summary Report (after Easter). 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion MySQL is an Open Source database server, commonly used together with web services provided by PHP scripts or similar. This security update fixes a broken mysqlhotcopy script as well as several security related bugs: - CAN-2005-0709: MySQL allowed remote authenticated users with INSERT and DELETE privileges to execute arbitrary code by using CREATE FUNCTION to access libc calls, as demonstrated by using strcat, on_exit, and exit. - CAN-2005-0710: MySQL allowed remote authenticated users with INSERT and DELETE privileges to bypass library path restrictions and execute arbitrary libraries by using INSERT INTO to modify the mysql.func table, which is processed by the udf_init function. - CAN-2005-0711: MySQL used predictable file names when creating temporary tables, which allows local users with CREATE TEMPORARY TABLE privileges to overwrite arbitrary files via a symlink attack. The first two vulnerabilities can be exploited by an attacker using SQL inject attack vectors into a flawed PHP application for instance. 2) solution/workaround None. Please install the updated packages. 3) special instructions and notes Please restart the mysql database server update the update by running as root: /sbin/rcmysql try-restart 4) package location and checksums Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. x86 Platform: SUSE Linux 9.2: 9060e74c421f30d85d24d9029c6779b3 66f6252369c5297629a3643d169776cf SUSE Linux 9.1: a485a73bb70f87a8921b5a12c4b27658 0ab12a132ed5abe038457a538acf4ac3 source rpm(s): 63d0ad89fb1d031409098f981d92a011 SUSE Linux 9.0: a24632927f128f1325614629333bddbc c054fffbcbd661408573f037935a69d0 source rpm(s): 1a4d0af904c7a797f001c093c1cbc2f1 SUSE Linux 8.2: 4af88dde3c487b0c7fcf22cb49d02b07 e3a53abf26170957f532ea7ac25cdcd7 source rpm(s): a50b1b6df881d203ec215b31bc73d698 x86-64 Platform: SUSE Linux 9.2: 6656f6ed35d92127ce298134a0624867 79e4561d475e7bb2303f4ff41f553bb9 source rpm(s): 80b0820c075876a447a31952a67e6a5c SUSE Linux 9.1: c308aac4a2c273f983aa0a57722930b3 d895c752111c215161e06d0bf88abf20 source rpm(s): c5902748d9708ec5f4a76028e96de91a SUSE Linux 9.0: bfadabeab279bd0dccdad2cc04561e86 485cc2aab05494fa7d8137bdd5ded701 source rpm(s): ac5d1d6e78cbfed6307721490cf1c708 ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: See SUSE Security Summary Report (after Easter). ______________________________________________________________________________ 6) standard appendix: authenticity verification, additional information - Package authenticity verification: SUSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. 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) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> 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 announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key, the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) 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, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SUSE in rpm packages for SUSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SUSE Linux distributions version 7.1 and thereafter install the key "" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at . - SUSE runs two security mailing lists to which any interested party may subscribe: - general/linux/SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an email to <>. - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an email to <>. For general information or the frequently asked questions (faq) send mail to: <> or <> respectively. ===================================================================== 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, it is desired that the clear-text signature shows proof of the authenticity of the text. SUSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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