-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Summary Report Announcement-ID: SUSE-SR:2005:002 Date: Wednesday, Jan 26th 2005 17:00 MEST Cross References: CAN-2004-1125 CAN-2005-0064 CAN-2004-1029 CAN-2004-0991 CAN-2004-0982 CAN-2004-1036 CAN-2004-1177 CAN-2004-1178 CAN-2004-1188 CAN-2004-1187 CAN-2004-1300 CAN-2005-0021 CAN-2005-0022 Content of this advisory: 1) solved security vulnerabilities: - new xpdf integer overflows - awstats remote code injection - Java Plugin security problem - mpg123 buffer overflow - squirrelmail cross site scripting - MozillaThunderbird NNTP handling - mailman cross site scripting and weak passwords - xine-lib buffer overflows 2) pending vulnerabilities, solutions, workarounds: - cups security problems - mozilla problems - several KDE problems - ImageMagick buffer overflow 3) standard appendix (further information) ______________________________________________________________________________ 1) solved security vulnerabilities To avoid spamming lists with advisories for every small incident, we will release weekly summary advisories for issues where we have released updates without a full advisory. Since these are minor issues, md5sums and ftp URLs are not included. Fixed packages for the following incidents are already available on our FTP server and via the YaST Online Update. - integer overflows in xpdf More integer overflows were reported by iDEFENSE Security. These have been fixed and updated packages for xpdf, gpdf, pdftohtml, kdegraphics-pdf have already been released, cups is pending testing. These are tracked by the Mitre CVE IDs CAN-2004-1125 and CAN-2005-0064. This affects all SUSE Linux based distributions. - awstats remote code injection A remote code injection with handcrafted URL parameters was found in the awstats web statistics helper program and could lead to a remote attacker to easily gain access to the system. This was fixed for SUSE Linux 9.1 and 9.2, the awstats packages of older versions appear not to be vulnerable. - Java Plugin security A privilege escalation problem was found in the Sun Java Plugin which could have a remote attacker reading and writing files of a local user browsing websites. This is tracked by the Mitre CVE ID CAN-2004-1029. This bug affects all SUSE versions on the Intel x86 and AMD64 / Intel Extended Memory Architecture (EM64T) platforms. - mpg123 buffer overflow Another buffer overflow was found in the stream handling of mpg123. Also the previous fix of the HTTP header handling was improved upon. This is tracked by the Mitre CVE IDs CAN-2004-0991 and CAN-2004-0982. All SUSE Linux products including mpg123 are affected. - squirrelmail cross site scripting problem A cross site scripting problem in squirrelmail was fixed. This issue is tracked by the Mitre CVE ID CAN-2004-1036. All SUSE Linux versions were affected by the problem. - MozillaThunderbird The handling of NNTP headers in Mozilla version up to 1.7.3 could lead to a remote attacker to gain access by manipulating a remote NNTP Server. SUSE Linux versions 9.1 and 9.2 are affected. - cross site scripting and weak passwords in mailman A cross site scripting problem in mailman was fixed. Also, mailman auto generated too weak passwords (if the user did not choose a password). This is tracked by the Mitre CVE IDs CAN-2004-1178 and CAN-2004-1177. All SUSE Linux based products are affected. - xine-lib buffer overflow problems Several problems spotted by students of djb that could have a remote attacker exploiting buffer overflows to get local access were fixed in the xine-lib package. This is tracked by the Mitre CVE IDs CAN-2004-1188, CAN-2004-1187, and CAN-2004-1300. All SUSE Linux based products are affected. - exim local buffer overflow problems Buffer overflows in exim helper applications could help a local attacker gaining root access. These issues are tracked by the Mitre CVE IDs CAN-2005-0021 and CAN-2005-0022. All SUSE Linux based products are affected. - imlib2 buffer overflows The XPM and BMP loader of the imlib2 library had several buffer overflows. Since no network aware applications use imlib2, this problem is of minor severity. SUSE Linux version 9.0 to 9.2 are affected. ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - several security problems in CUPS Several problems in the print system CUPS are currently being fixed and tested: - xpdf buffer overflows in included pdftops filter program. - buffer overflow in hpgltops filter program found by djb students. - lppasswd denial of service attack found by djb students. Packages are currently QA tested. - Mozilla vulnerabilities Lots of Mozilla problems have been fixed in the Mozilla and Mozilla Firefox packages. These are currently being QA tested. - ImageMagick buffer overflow vulnerability A ImageMagick buffer overflow vulnerability was reported by iDEFENSE security. Updated packages have been prepared and are currently being QA tested. - Several KDE vulnerabilities Several vulnerabilities were identified within KDE: - Java Plugin security problems similar to the Sun Java Plugin security problems were identified and fixed. - A FTP command injection problem was identified and fixed. - Window injection vulnerabilities were identified and fixed. Updated packages for all SUSE Linux based products are currently being QA tested. ______________________________________________________________________________ 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 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 "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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