-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: cvs Announcement-ID: SuSE-SA:2004:013 Date: Wed May 19 13:00:00 MEST 2004 Affected products: 8.0, 8.1, 8.2, 9.0, 9.1 SuSE Firewall on CD 2 - VPN SuSE Firewall on CD 2 SuSE Linux Enterprise Server 7, 8 SuSE Linux Office Server UnitedLinux 1.0 Vulnerability Type: remote command execution Severity (1-10): 6 SUSE default package: No. Cross References: CAN-2004-0396 Content of this advisory: 1) security vulnerability resolved: buffer overflow in cvs problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - neon - subversion - kdelibs/kdelibs3 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The Concurrent Versions System (CVS) offers tools which allow developers to share and maintain large software projects. Stefan Esser reported buffer overflow conditions within the cvs program. They allow remote attackers to execute arbitrary code as the user the cvs server runs as. Since there is no easy workaround we strongly recommend to update the cvs package. 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. Intel i386 Platform: SuSE-9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.3.i586.rpm 69c95cbfa186423e5ccd0bceca85ce5e patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.3.i586.patch.rpm ed22f3796ba36d11e8b57206cc44ba50 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/cvs-1.11.14-24.3.src.rpm decc60230083b364be07846947baa10f SuSE-9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-81.i586.rpm 161e5eece784ccec09e54d93a48a25eb patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-81.i586.patch.rpm 3832183c3375821d96d6bbe841c2542a source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/cvs-1.11.6-81.src.rpm 2e92aa8a31f034ab24b95d5586a878b3 SuSE-8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-112.i586.rpm c03d619fa87ffdd87e9d194ce21ce26a patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-112.i586.patch.rpm 239d2dcb90a84b9a189f7320443b7710 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/cvs-1.11.5-112.src.rpm 8f813f570a0c24f204141006aa113e9b SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-329.i586.rpm f0ded9029096e4c7fe448bfd766873c8 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-329.i586.patch.rpm f283e18a349d0b591fcc99e856e2d2a0 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/cvs-1.11.1p1-329.src.rpm 2fea2689f867ef164db489fc3e7ae7ae SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-329.i386.rpm c92b15968da527c390bc2fdb43678aed patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-329.i386.patch.rpm bd265ef4d22e697083fb7c4651282a29 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/cvs-1.11.1p1-329.src.rpm a4fd9ee43942c279f1daff2f62472cee Opteron x86_64 Platform: SuSE-9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.3.x86_64.rpm 94d36ec490837efc5b31ec425f7fd52e patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.3.x86_64.patch.rpm 94909d2d14bac22141ae5422d0905e93 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/cvs-1.11.14-24.3.src.rpm 0ccd11bc9288c9caf2b695fabb4f2c8e SuSE-9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-81.x86_64.rpm 19bad506fcf71a5391c7e597aca841a9 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-81.x86_64.patch.rpm 12bac5dd73b90cacb4da3ce7cabef60e source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/cvs-1.11.6-81.src.rpm 35f08b9134b849dbdeb43864c48e7406 ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - neon The neon library contains a buffer overflow which allows attackers to execute arbitrary code as the user utilizing the neon library. New neon packages are available on our ftp servers. CAN-2004-0398 has been assigned to this issue. - subversion New subversion, subversion-devel and subversion-server packages are available on our ftp servers, fixing a stack overflow issue while handling REPORT queries. CAN-2004-0397 has been assigned to this issue. - kdelibs/kdelib3 New kdelibs and kdelibs3 packages are currently being tested, fixing the vulnerabilities described in http://www.kde.org/info/security/advisory-20040517-1.txt. New packages will soon be available on our ftp servers. ______________________________________________________________________________ 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 <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 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 <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 "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-subscribe@suse.com>. 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 <suse-security-announce-subscribe@suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info@suse.com> or <suse-security-faq@suse.com> respectively. ===================================================================== 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, 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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