gtk2, gdk-pixbuf Updates for SUSE Linux
Posted on: 09/17/2004 08:38 AM

Updated gtk2/gdk-pixbuf packages are available for SUSE Linux ______________________________________________________________________________ SUSE Security Announcement Package: gtk2, gdk-pixbuf Announcement-ID: SUSE-SA:2004:033 Date: Wednesday, Sep 17th 2004 12:00 MEST Affected products: 8.1, 8.2, 9.0, 9.1 SUSE Linux Enterprise Server 8, 9 SuSE Linux Desktop 1.0 Vulnerability Type: remote code execution Severity (1-10): 9 SUSE default package: yes Cross References: CAN-2004-0782 CAN-2004-0783 CAN-2004-0788 Content of this advisory: 1) security vulnerability resolved: - heap based overflow - stack based overflow - integer overflow 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: - mozilla - mc - squid - gaim - nessus 6) standard appendix (further information)

______________________________________________________________________________ 1) problem description, brief discussion gdk-pixbuf is an image loading and rendering library mostly used by GTK and GNOME applications. It is distributed as a separate package for gtk1 and integrated into the gtk2 package. Chris Evans has discovered a heap based, a stack based and an integer overflow in the XPM and ICO loaders of those libraries. The overflows can be exploited by tricking an application to display a malformed image to make it crash or to execute code. 2) solution/workaround There is no known workaround, please install the update packages. 3) special instructions and notes After the update packages have been installed, all applications linked against gdk-pixbuf libraries must be restarted. 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 9.1: 6bef703af85fcded2c953e508e0fffea 73949b52a855b2a53eb7c0abdb5a9823 patch rpm(s): 7326343f2db2f859a22c1c52c4b4e0ef a2b2cfe3f04cf45147c27a821df77f63 source rpm(s): b82cc25deca74c04d074f4f1bd137349 7dfece40e4e1ef17da8ef4a97cc57fa7 SUSE Linux 9.0: ccfef6e4d79588221235028a5fc100d2 0748a443ba301f2538650cd7145edf53 patch rpm(s): 87aa3c619340a1dd8e70695171eb5597 d2be310f9f9d222ebf3979e65c23746e source rpm(s): 67798c77985fbb707011c52035bc31e1 ab9854039bbcdde141b9ddd666cc67cc SUSE Linux 8.2: bd5acc20314f84cfc5ef157dd413e103 ecc397996e6efae04e65db962225a09b patch rpm(s): b852ce69a5927922488e8476ab538cbb 1f8a531333bcea1931aa55458d74783a source rpm(s): cb96ca0160702b23bfa947df9dd6a75b 19c65cf5e847efec236d5c1c1c5bf68c SUSE Linux 8.1: 0deb5df027c6f5380927c688ae2015aa 635848714d0e82daf67bbdb184b82e1c patch rpm(s): 317bf98a5ee87dd6b3e62ef29144ad92 4066bfc94676589f097b0bfe5492f2b5 source rpm(s): 7283265c139a32de9cc62eb9ed52d312 0496d349d3174f8acf4e51f3c617aa59 x86-64 Platform: SUSE Linux 9.1: 510586d509e3010b24ea7ed848132291 24fbedab59dfd403bda2492102d21487 patch rpm(s): 7eb6e9adc8509cd356094c460809324a 43fc35b1805d48eb2c488033ffb05162 source rpm(s): bda00431cb962a10f973f5553b94a2cf 14a1a69061096c93f7532afc9bc3dd2d SUSE Linux 9.0: 90a63449d75cbc2ab698f500eb596987 20d0ddb67ef73a71b271e4a66fd613a2 patch rpm(s): 230ecdddec3899cecf93390a9922578d 338cf1416be210ab9e3c49c7b9088074 source rpm(s): 851fa924bd79e6f1995797ea3d3bea52 f90e100d97a015e065b0bb849349d59c ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: - mozilla We are in the process of releasing updates for mozilla (and related browsers), fixing various issues: CAN-2004-0597, CAN-2004-0718, CAN-2004-0722, CAN-2004-0757, CAN-2004-0758, CAN-2004-0759, CAN-2004- 0760, CAN-2004-0761, CAN-2004-0762, CAN-2004-0763, CAN-2004-0764 and CAN-2004-0765. We will give you concrete details in a separate mozilla advisory when the updates are available. - mc The console filesystem browser mc was found vulnerable to various meta-char attacks in the extfs perl and shell scripts. These bugs can be exploited by providing a malformed archive file to a victim user to execute shell commands with her/his privileges. (CAN-2004-0494) New packages will be available soon. - squid Certain malformed NTLMSSP packets can crash the NTLM helpers provided by Squid (CAN-2004-0832). New packages will be available soon. - gaim This security update fixes four security issues which are registered as: + CAN-2004-0754 An integer overflow in the groupware message handler exists in Gaim. + CAN-2004-0784 A shell escape vulnerability in the handling of smiley theme tar- ball filenames could lead to arbitrary command execution. + CAN-2004-0785 Buffer overflows in Gaim could lead to a denial of service or arbitrary code execution. Additionally a buffer overflow in the URL parsing code of gaim is fixed. This bug let to remote system compromise with the privileges of the user running gaim. - nessus The nessus-adduser creates temporary files in $TMPDIR in an insecure manner. New packages will be available soon. ______________________________________________________________________________ 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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