SUSE Security Announcement: subversion (SuSE-SA:2004:018)

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: subversion Announcement-ID: SuSE-SA:2004:018 Date: Thursday, Jun 17th 2004 09:30 MEST Affected products: 8.1, 8.2, 9.0, 9.1 Vulnerability Type: remote system compromise Severity (1-10): 5 SUSE default package: no Cross References: CAN-2004-0413 Content of this advisory: 1) security vulnerability resolved: heap overflow problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - icecast - sitecopy - cadaver - OpenOffice_org - tripwire - postgresql - lha - XDM - mod_proxy 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Subversion is a version control system like the well known CVS. The subversion code is vulnerable to a remotely exploitable buffer overflow on the heap. The bug appears before any authentication took place. An attacker is able to execute arbitray code by abusing this vulnerability. There is no temporary workaround known. 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 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/subversion-1.0.0-73.7.i586.rpm 775edc02ae610d8062e808d37540c0ea patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/subversion-1.0.0-73.7.i586.patch.rpm 93d2ddd82390857d7c2ed5793d2312eb source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/subversion-1.0.0-73.7.src.rpm 8498e3e8911260f8f06c285946f12437 SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/subversion-0.27.0-209.i586.rpm deeeef548aa11dfe1b176bf5a5af9d75 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/subversion-0.27.0-209.i586.patch.rpm 38a6d786f0f0b42e68117a277b4db309 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/subversion-0.27.0-209.src.rpm 0c69c5a9665e75504d2c4bf8c51807a6 SUSE Linux 8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/subversion-0.17.1-98.i586.rpm 1fbd241f1dfb9a95f4eb6fe224eb40bb patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/subversion-0.17.1-98.i586.patch.rpm b553edab8ea07dac53ad26d147dd029d source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/subversion-0.17.1-98.src.rpm 89d2b6eedbb67d8e3be5e1c7c334792f SUSE Linux 8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/subversion-0.23.0-60.i586.rpm 3e1d7172bc213bcdb7edc88b7653ab1b patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/subversion-0.23.0-60.i586.patch.rpm d4897a9197e3c8518a132a0d64cc41e5 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/subversion-0.23.0-60.src.rpm 3ebbd71afb51b6becb15f12e813d705a x86-64 Platform: SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/subversion-1.0.0-73.7.x86_64.rpm da1b75e7cf629b65f20b75295df216d8 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/subversion-1.0.0-73.7.x86_64.patch.rpm 15ec6b033bc85e22b78b1638f13ffc9b source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/subversion-1.0.0-73.7.src.rpm 2b738a9a5e0aabcdee60d19b74371580 SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/subversion-0.27.0-209.x86_64.rpm af042607c6ad7e55c248f47177e8c166 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/subversion-0.27.0-209.x86_64.patch.rpm cbffe53ef02a36d63b71d2f86c17d861 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/subversion-0.27.0-209.src.rpm d16a485c5d3983b2b4322405abe3c01a ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - icecast The icecast service is vulnerable to a remote denial-of-service attack. Update packages will be available soon. - sitecopy The sitecopy package includes a vulnerable version of the neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be available soon. - cadaver The cadaver package includes a vulnerable version of the neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be available soon. - OpenOffice_org The OpenOffice_org package includes a vulnerable version of the neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be available soon. - tripwire A format string bug in tripwire can be exploited locally to gain root permissions. Update packages will be available soon. - postgresql A buffer overflow in psqlODBC could be exploited to crash the application using it. E.g. a PHP script that uses ODBC to access a PostgreSQL database can be utilized to crash the surrounding Apache web-server. Other parts of PostgreSQL are not affected. Update packages will be available soon. - lha Minor security fix for a buffer overflow while handling command line options. This buffer overflow could be exploited in conjunction with other mechanisms to gain higher privileges or access the system remotely. - XDM/XFree86 This update resolves random listening to ports by XDM that allows to connect via the XDMCP. SUSE LINUX 9.1 is affected only. New packages are currently being tested and will be available soon. - mod_proxy A buffer overflow can be triggered by malicious remote servers that return a negative Content-Length value. This vulnerability can be used to execute commands remotely New packages are currently being tested and will be available soon. ______________________________________________________________________________ 3) 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 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 security@suse.de), 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 to verify the signature of the package, where 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 "build@suse.de" 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 ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security@suse.com - general/linux/SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an email 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 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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