-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: kdelibs3 Announcement-ID: SUSE-SA:2005:022 Date: Mon, 11 Apr 2005 15:00:00 +0000 Affected products: 9.1, 9.2, 9.3 SUSE Linux Enterprise Server 9 Novell Linux Desktop 9 Vulnerability Type: remote code execution local denial of service Severity (1-10): 8 SUSE default package: yes Cross References: CAN-2005-0237 CAN-2005-0396 Content of this advisory: 1) security vulnerability resolved: several security problems in KDE 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. 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion Several vulnerabilities have been identified and fixed in the KDE desktop environment. - A buffer overflow via specially crafted PCX pictures was fixed. This could lead to a remote attacker being able to execute code as the user opening or viewing a PCX images. This PCX image could have been embedded within a web page or Email. This affects SUSE Linux 9.1 up to 9.3, SUSE Linux Enterprise Server 9 and Novell Linux Desktop 9. - The IDN domain name cloaking problem was fixed. A remote website could disguise its name as another potentially trusted site by using a extension originally meant for non-ASCII domain names by using "homographs" which look exactly like other letters. The fix used by KDE is only use homographs for trusted domains. It is disabled by default for the .net, .com and .org domains. This issue exists in SUSE Linux 9.1 and 9.2, SUSE Linux Enterprise Server 9 and Novell Linux Desktop 9. It has been assigned the Mitre CVE ID CAN-2005-0233. - A denial of service attack against the DCOP service was fixed. A local user could cause another users KDE session to visible hang by writing bad data to the world writable DCOP socket. The socket has been made writable only for the user itself. This was found by Sebastian Krahmer of SUSE Security. This affects all SUSE Linux versions, except SUSE Linux 9.3. Updates for SUSE Linux up to 9.0 and SUSE Linux Enterprise Server 8 are not included for this minor issue. They will be included should a later security update for different issues be necessary. This is tracked by the Mitre CVE ID CAN-2005-0396. Additionally following bug was fixed: - A possible race in the DNS resolver causing unresolved hosts in rare cases was fixed. This only affected SUSE Linux 9.3. 2) solution/workaround Please install the updated packages. 3) special instructions and notes Make sure you restart your KDE session after this update. 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 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/kdelibs3-3.4.0-20.3.i586.rpm 6b63160218d7e9023418980186942ab3 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/kdelibs3-32bit-9.3-7.1.x86_64.rpm 7de0dcf016ad28f3f95c9110a376dc7b SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kdelibs3-3.3.0-34.5.i586.rpm 47c8c9ccb24b30261de0910ff5bfa19e ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/kdelibs3-32bit-9.2-200504081300.x86_64.rpm 7da9ca5c0cefb043ea170c59beaa588a SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kdelibs3-3.2.1-44.46.i586.rpm 6dd4f0b38a750f256f6639decda2a968 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/i586/kdelibs3-32bit-9.1-200504071814.i586.rpm 955791a7b3973698f2c9ea8b0cd09716 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kdelibs3-3.2.1-44.46.src.rpm 3f5585b97d663b7d6d9bcac0f8c0b7a0 x86-64 Platform: SUSE Linux 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/kdelibs3-3.4.0-20.3.x86_64.rpm 5c79a3e9e143bd0c29ecbf7d4b4222a2 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/kdelibs3-3.4.0-20.3.src.rpm 6a3f653fe866b9cfb7f9215fed404e94 SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/kdelibs3-3.3.0-34.5.x86_64.rpm d2970930a5757b3a2758eb53efda5d8b source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kdelibs3-3.3.0-34.5.src.rpm 4ae72b2108db739ebc4aefca67b5b566 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kdelibs3-3.2.1-44.46.x86_64.rpm 7355ab449354f49fdc0de161d6fb86ab source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kdelibs3-3.2.1-44.46.src.rpm 1587e0cfa6ce3dae17c4f6fa8c10ef01 ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: See SUSE Security Summary Report. ______________________________________________________________________________ 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 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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