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SuSE alert SUSE-SA:2005:024 (cvs)

From:  Sebastian Krahmer <>
Subject:  [suse-security-announce] SUSE Security Announcement: cvs (SUSE-SA:2005:024)
Date:  Mon, 18 Apr 2005 16:22:36 +0200 (CEST)

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: cvs Announcement-ID: SUSE-SA:2005:024 Date: Monday, Apr 18st 2005 13:30 MEST Affected products: 8.2, 9.0, 9.1, 9.2, 9.3 SUSE CORE 9 for x86 SuSE Linux Enterprise Server 8, 9 UnitedLinux 1.0 School-Server 1 Open-Enterprise-Server 9 Vulnerability Type: remote code execution Severity (1-10): 6 SUSE default package: No Cross References: CAN-2005-0753 Content of this advisory: 1) security vulnerability resolved: buffer overflow and memory access problem in cvs problem description 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: - IDN (Internationalized Domain Name) cloaking - PostgreSQL - Mozilla - OpenOffice_org 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion The Concurrent Versions System (CVS) offers tools which allow developers to share and maintain large software projects. The current maintainer of CVS reported various problems within CVS such as a buffer overflow and memory access problems which have been fixed within the available updates. The CVE project has assigned the CAN number CAN-2005-0753. 2) solution/workaround There is no easy workaround except shutting down the CVS server. 3) special instructions and notes No special actions need to be taken after installing this update. 4) package location and checksums 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 for installation from the maintenance web. x86 Platform: SUSE Linux 9.3: 8e27dd3b7a9867940830aa9dd8fd95bc patch rpm(s): acd6904641df500ca50da8147ee54019 source rpm(s): 6a075a97c2bd30ade965e90e0f9671c4 SUSE Linux 9.2: 7192dce3bb42cd51c98a3510e9e5e73a patch rpm(s): ae4b8f9096b50e7f1c3a15e715e4c8e7 source rpm(s): cebc4e07ac34f6a6f76789d6ce0eba37 SUSE Linux 9.1: 07778aea3050bcf05c96ae680b9d01e4 patch rpm(s): 60591530555521e34d798a0d0365686a source rpm(s): bd4b0324b51cee45f247e41f2f6139d4 SUSE Linux 9.0: 795f6e5a6849706bb439366129833841 patch rpm(s): ec2bb29f912831f9d5e7dd15ec950d9b source rpm(s): a3695ffd8f741a9f376e5e3244d412c8 SUSE Linux 8.2: 6fc24ea4712d10855e60d26b9262f48c patch rpm(s): 7b4e1cae79c33c4965b53159bd888a70 source rpm(s): 401896062510804b79ba75a5e800d9e2 x86-64 Platform: SUSE Linux 9.3: db2665d2e95762aa2c376fed929c44f1 patch rpm(s): 8b3070a29bd15c430980937b53928640 source rpm(s): 6a075a97c2bd30ade965e90e0f9671c4 SUSE Linux 9.2: 21518326918a0a7e42176b60544e214e patch rpm(s): 8bbb9b4bda742cb62836b6a6453aef2c source rpm(s): cebc4e07ac34f6a6f76789d6ce0eba37 SUSE Linux 9.1: 7543263ca5374da3a9926cde6c8bd58c patch rpm(s): 1b245e5669be7b6e082c67d5e094466a source rpm(s): 8c399e20f6046faa3de70ae0fc133060 SUSE Linux 9.0: 708318fbf0d27efd212c16ac26f63003 patch rpm(s): 7d5f303351ae584f07998847cc476f7c source rpm(s): ff6eddc0257dfd8dfa1b97653117d2c7 ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: - IDN (Internationalized Domain Name) cloaking / homograph attacks Problems with the IDN / punycode handling that allows non-ASCII domain names were reported for every browser. - The KDE approach is currently filtering on the top level domain. - The Mozilla approach is currently to display punycode. We have released Mozilla Firefox and KDE / konqueror updates for this problem, the others (mozilla suite and opera) are still pending. - PostgreSQL problems Additional PostgreSQL problems were reported: - A local user could bypass the EXECUTE permission check for functions by using the CREATE AGGREGATE command. CAN-2005-0244 - Other earlier listed problems are already fixed. We are still working on updates for this problem. - new Mozilla security problems Several new Mozilla browser security problems have been reported. We are currently addressing these issues. - OpenOffice_org heap overflow A heap overflow was found in the MS Word document handing of OpenOffice_org, allowing a remote attacker to execute code via a handcrafted .doc file. We are preparing updates for this issue. ______________________________________________________________________________ 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 recommend against subscribing to security lists that cause the e-mail 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 file name of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled 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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